Very cool find here: Ender 3 V2 Schematic for 4.2.2 board · Discussion #814 · Jyers/Marlin · GitHub
PDFs also attached here for reference
In addition the 4.2.2 board apparently can come with different driver chips:
The letters written on the card reader slot (with marker) are different depending on which stepper driver it has.
These are for the ones 4.2.X board with STM32F103RET6 controller:
C = HR4988 E = A4988 A = TMC2208 B = TMC2209 H = TMC2225
Credits to the folks in the above link. Must have been an insane work to establish these schematics.