Could you explain why are you flashing your keyboard so often? I have QMK keyboard, and I never felt like I’m missing anything by using it as is out of box. It also has a hardware switch for Mac/PC layouts, which is the only feature I could imagine having to flash it for, if that wasn’t available
Changing the layout of key map layers for convenience, and macros, back when I assembled my first QMK keyboard. Haven’t touched it in years now, though.