diff --git a/builddefs/common_features.mk b/builddefs/common_features.mk
index e597924469..c6a67ee87d 100644
--- a/builddefs/common_features.mk
+++ b/builddefs/common_features.mk
@@ -177,7 +177,7 @@ ifeq ($(strip $(QUANTUM_PAINTER_ENABLE)), yes)
     include $(QUANTUM_DIR)/painter/rules.mk
 endif
 
-VALID_EEPROM_DRIVER_TYPES := vendor custom transient i2c spi wear_leveling
+VALID_EEPROM_DRIVER_TYPES := vendor custom transient i2c spi wear_leveling legacy_stm32_flash
 EEPROM_DRIVER ?= vendor
 ifeq ($(filter $(EEPROM_DRIVER),$(VALID_EEPROM_DRIVER_TYPES)),)
   $(call CATASTROPHIC_ERROR,Invalid EEPROM_DRIVER,EEPROM_DRIVER="$(EEPROM_DRIVER)" is not a valid EEPROM driver)
@@ -204,6 +204,12 @@ else
     OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_SPI
     QUANTUM_LIB_SRC += spi_master.c
     SRC += eeprom_driver.c eeprom_spi.c
+  else ifeq ($(strip $(EEPROM_DRIVER)), legacy_stm32_flash)
+    # STM32 Emulated EEPROM, backed by MCU flash (soon to be deprecated)
+    OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_STM32_FLASH_EMULATED
+    COMMON_VPATH += $(PLATFORM_PATH)/$(PLATFORM_KEY)/$(DRIVER_DIR)/flash
+    COMMON_VPATH += $(DRIVER_PATH)/flash
+    SRC += eeprom_driver.c eeprom_stm32.c flash_stm32.c
   else ifeq ($(strip $(EEPROM_DRIVER)), transient)
     # Transient EEPROM implementation -- no data storage but provides runtime area for it
     OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_TRANSIENT
@@ -214,20 +220,25 @@ else
     ifeq ($(PLATFORM),AVR)
       # Automatically provided by avr-libc, nothing required
     else ifeq ($(PLATFORM),CHIBIOS)
-      ifneq ($(filter STM32F3xx_% STM32F1xx_% %_STM32F401xC %_STM32F401xE %_STM32F405xG %_STM32F411xE %_STM32F072xB %_STM32F042x6 %_GD32VF103xB %_GD32VF103x8, $(MCU_SERIES)_$(MCU_LDSCRIPT)),)
-        # Emulated EEPROM
+      ifneq ($(filter %_STM32F072xB %_STM32F042x6, $(MCU_SERIES)_$(MCU_LDSCRIPT)),)
+        # STM32 Emulated EEPROM, backed by MCU flash (soon to be deprecated)
         OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_STM32_FLASH_EMULATED
         COMMON_VPATH += $(PLATFORM_PATH)/$(PLATFORM_KEY)/$(DRIVER_DIR)/flash
         COMMON_VPATH += $(DRIVER_PATH)/flash
         SRC += eeprom_driver.c eeprom_stm32.c flash_stm32.c
+      else ifneq ($(filter $(MCU_SERIES),STM32F1xx STM32F3xx STM32F4xx STM32L4xx STM32G4xx WB32F3G71xx WB32FQ95xx GD32VF103),)
+        # Wear-leveling EEPROM implementation, backed by MCU flash
+        OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_WEAR_LEVELING
+        SRC += eeprom_driver.c eeprom_wear_leveling.c
+        WEAR_LEVELING_DRIVER = embedded_flash
       else ifneq ($(filter $(MCU_SERIES),STM32L0xx STM32L1xx),)
         # True EEPROM on STM32L0xx, L1xx
         OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_STM32_L0_L1
         SRC += eeprom_driver.c eeprom_stm32_L0_L1.c
       else ifneq ($(filter $(MCU_SERIES),RP2040),)
-		# Wear-leveling EEPROM implementation, backed by RP2040 flash
-		OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_WEAR_LEVELING
-		SRC += eeprom_driver.c eeprom_wear_leveling.c
+        # Wear-leveling EEPROM implementation, backed by RP2040 flash
+        OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_WEAR_LEVELING
+        SRC += eeprom_driver.c eeprom_wear_leveling.c
         WEAR_LEVELING_DRIVER = rp2040_flash
       else ifneq ($(filter $(MCU_SERIES),KL2x K20x),)
         # Teensy EEPROM implementations
diff --git a/builddefs/mcu_selection.mk b/builddefs/mcu_selection.mk
index 0ea9630d59..de919bd263 100644
--- a/builddefs/mcu_selection.mk
+++ b/builddefs/mcu_selection.mk
@@ -348,8 +348,6 @@ ifneq ($(findstring STM32F401, $(MCU)),)
   #   or <keyboard_dir>/ld/
   ifeq ($(strip $(BOOTLOADER)), tinyuf2)
     MCU_LDSCRIPT ?= STM32F401xC_tinyuf2
-    EEPROM_DRIVER ?= wear_leveling
-    WEAR_LEVELING_DRIVER ?= legacy
   else
     MCU_LDSCRIPT ?= STM32F401xC
   endif
@@ -465,8 +463,6 @@ ifneq ($(findstring STM32F411, $(MCU)),)
   #   or <keyboard_dir>/ld/
   ifeq ($(strip $(BOOTLOADER)), tinyuf2)
     MCU_LDSCRIPT ?= STM32F411xE_tinyuf2
-    EEPROM_DRIVER ?= wear_leveling
-    WEAR_LEVELING_DRIVER ?= legacy
   else
     MCU_LDSCRIPT ?= STM32F411xE
   endif
@@ -520,6 +516,9 @@ ifneq ($(findstring STM32F446, $(MCU)),)
 
   # Bootloader address for STM32 DFU
   STM32_BOOTLOADER_ADDRESS ?= 0x1FFF0000
+
+  # Default as no chibios efl config
+  EEPROM_DRIVER ?= transient
 endif
 
 ifneq ($(findstring STM32G431, $(MCU)),)
diff --git a/keyboards/acheron/apollo/87h/delta/rules.mk b/keyboards/acheron/apollo/87h/delta/rules.mk
index 814a3f15f0..4fa4db5450 100644
--- a/keyboards/acheron/apollo/87h/delta/rules.mk
+++ b/keyboards/acheron/apollo/87h/delta/rules.mk
@@ -19,8 +19,6 @@ RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
 AUDIO_ENABLE = no           # Audio output
 RGB_MATRIX_ENABLE = yes
 RGB_MATRIX_DRIVER = WS2812
-EEPROM_DRIVER = wear_leveling
-WEAR_LEVELING_DRIVER = legacy
 
 # Enter lower-power sleep mode when on the ChibiOS idle thread
 OPT_DEFS += -DCORTEX_ENABLE_WFI_IDLE=TRUE -DDEBUG_EEPROM_OUTPUT=TRUE
diff --git a/keyboards/acheron/apollo/87h/gamma/rules.mk b/keyboards/acheron/apollo/87h/gamma/rules.mk
index c05ab3c41a..5b419929d5 100644
--- a/keyboards/acheron/apollo/87h/gamma/rules.mk
+++ b/keyboards/acheron/apollo/87h/gamma/rules.mk
@@ -20,8 +20,6 @@ AUDIO_ENABLE = no           # Audio output
 RGB_MATRIX_ENABLE = yes
 RGB_MATRIX_DRIVER = IS31FL3741
 KEYBOARD_SHARED_EP = yes
-EEPROM_DRIVER = wear_leveling
-WEAR_LEVELING_DRIVER = legacy
 
 # Enter lower-power sleep mode when on the ChibiOS idle thread
 OPT_DEFS += -DCORTEX_ENABLE_WFI_IDLE=TRUE -DDEBUG_EEPROM_OUTPUT=TRUE
diff --git a/keyboards/acheron/apollo/87htsc/rules.mk b/keyboards/acheron/apollo/87htsc/rules.mk
index f2becf4db4..4fa4db5450 100644
--- a/keyboards/acheron/apollo/87htsc/rules.mk
+++ b/keyboards/acheron/apollo/87htsc/rules.mk
@@ -20,7 +20,5 @@ AUDIO_ENABLE = no           # Audio output
 RGB_MATRIX_ENABLE = yes
 RGB_MATRIX_DRIVER = WS2812
 
-EEPROM_DRIVER = wear_leveling
-WEAR_LEVELING_DRIVER = legacy
 # Enter lower-power sleep mode when on the ChibiOS idle thread
 OPT_DEFS += -DCORTEX_ENABLE_WFI_IDLE=TRUE -DDEBUG_EEPROM_OUTPUT=TRUE
diff --git a/keyboards/acheron/apollo/88htsc/rules.mk b/keyboards/acheron/apollo/88htsc/rules.mk
index 18e8b33b07..4fa4db5450 100644
--- a/keyboards/acheron/apollo/88htsc/rules.mk
+++ b/keyboards/acheron/apollo/88htsc/rules.mk
@@ -20,8 +20,5 @@ AUDIO_ENABLE = no           # Audio output
 RGB_MATRIX_ENABLE = yes
 RGB_MATRIX_DRIVER = WS2812
 
-EEPROM_DRIVER = wear_leveling
-WEAR_LEVELING_DRIVER = legacy
-
 # Enter lower-power sleep mode when on the ChibiOS idle thread
 OPT_DEFS += -DCORTEX_ENABLE_WFI_IDLE=TRUE -DDEBUG_EEPROM_OUTPUT=TRUE
diff --git a/keyboards/matrix/m12og/rev1/rules.mk b/keyboards/matrix/m12og/rev1/rules.mk
index d9733e8c5e..136d07cbaa 100644
--- a/keyboards/matrix/m12og/rev1/rules.mk
+++ b/keyboards/matrix/m12og/rev1/rules.mk
@@ -20,6 +20,7 @@ NKRO_ENABLE = no            # Enable N-Key Rollover
 BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
 RGBLIGHT_ENABLE = yes       # HAS TO BE ON! Otherwise the custom matrix doesn't work
 AUDIO_ENABLE = no           # Audio output
+LTO_ENABLE = yes
 
 CUSTOM_MATRIX = lite
 SRC += matrix.c
diff --git a/keyboards/mechlovin/hex6c/config.h b/keyboards/mechlovin/hex6c/config.h
index c3125f217f..5f88d8ee70 100644
--- a/keyboards/mechlovin/hex6c/config.h
+++ b/keyboards/mechlovin/hex6c/config.h
@@ -54,4 +54,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define ENCODER_RESOLUTION 4
 
 #define TAP_CODE_DELAY 10
-#define DYNAMIC_KEYMAP_EEPROM_MAX_ADDR 2047
\ No newline at end of file
+
+#define WEAR_LEVELING_BACKING_SIZE 4096
+#define WEAR_LEVELING_LOGICAL_SIZE 2048
diff --git a/keyboards/rgbkb/mun/config.h b/keyboards/rgbkb/mun/config.h
index bcf4c59b65..345f701e7f 100644
--- a/keyboards/rgbkb/mun/config.h
+++ b/keyboards/rgbkb/mun/config.h
@@ -154,3 +154,6 @@
 #define TOUCH_UPDATE_INTERVAL 33
 #define OLED_UPDATE_INTERVAL 33
 #define TAP_CODE_DELAY 5
+
+#define WEAR_LEVELING_BACKING_SIZE 4096
+#define WEAR_LEVELING_LOGICAL_SIZE 2048
diff --git a/keyboards/rgbkb/sol3/config.h b/keyboards/rgbkb/sol3/config.h
index 1ab4cddc9b..195953f7ae 100644
--- a/keyboards/rgbkb/sol3/config.h
+++ b/keyboards/rgbkb/sol3/config.h
@@ -172,3 +172,6 @@
 #define AUDIO_CLICKY
 #define AUDIO_DAC_SAMPLE_WAVEFORM_SQUARE
 #define AUDIO_DAC_OFF_VALUE 0
+
+#define WEAR_LEVELING_BACKING_SIZE 4096
+#define WEAR_LEVELING_LOGICAL_SIZE 2048
diff --git a/keyboards/yugo_m/model_m_101/config.h b/keyboards/yugo_m/model_m_101/config.h
index c22bc610c3..0a9349aac1 100644
--- a/keyboards/yugo_m/model_m_101/config.h
+++ b/keyboards/yugo_m/model_m_101/config.h
@@ -91,5 +91,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 //#define NO_ACTION_TAPPING
 //#define NO_ACTION_ONESHOT
 
-/* redefine available (emulated) EEPROM as 4 kB rather than the default 1 kB to let VIA use more of the 8 kB of on-chip Flash of the STM32F303 to store 4 layers (since 4 layers * 8 rows * 16 columns * 2 = 1024 bytes but the default max available is 1023 bytes due to ATMEGA32U4 etc. only having 1 kB of EEPROM) */
-#define DYNAMIC_KEYMAP_EEPROM_MAX_ADDR 4095
+/* redefine available (emulated) EEPROM as 4 kB rather than the default 2 kB to let VIA use more of the on-chip Flash of the STM32F303 to store 4 layers (since 4 layers * 8 rows * 16 columns * 2 = 1024 bytes but the default max available is 1023 bytes due to ATMEGA32U4 etc. only having 1 kB of EEPROM) */
+#define WEAR_LEVELING_BACKING_SIZE 4096
+#define WEAR_LEVELING_LOGICAL_SIZE 2048
diff --git a/platforms/chibios/drivers/wear_leveling/wear_leveling_efl_config.h b/platforms/chibios/drivers/wear_leveling/wear_leveling_efl_config.h
index 244c87cb7f..e74cf85efd 100644
--- a/platforms/chibios/drivers/wear_leveling/wear_leveling_efl_config.h
+++ b/platforms/chibios/drivers/wear_leveling/wear_leveling_efl_config.h
@@ -20,7 +20,9 @@
 #        if defined(STM32_FLASH_LINE_SIZE) // from some family's stm32_registry.h file
 #            define BACKING_STORE_WRITE_SIZE (STM32_FLASH_LINE_SIZE)
 #        else
-#            if defined(QMK_MCU_SERIES_STM32F1XX)
+#            if defined(QMK_MCU_SERIES_STM32F0XX)
+#                define BACKING_STORE_WRITE_SIZE 2 // from hal_efl_lld.c
+#            elif defined(QMK_MCU_SERIES_STM32F1XX)
 #                define BACKING_STORE_WRITE_SIZE 2 // from hal_efl_lld.c
 #            elif defined(QMK_MCU_SERIES_STM32F3XX)
 #                define BACKING_STORE_WRITE_SIZE 2 // from hal_efl_lld.c