CF-20 Mk1 Bought online and Received. Touchpad worked upon arrival and then refused to work after Win 11 install (worked intermittently)

I was having the same exact issue, here's what worked for me.

Release Screen to Tablet Mode
Remove All Batteries (Tablet and Keyboard)
Remove SSD
NOW WITH EVERYTHING REMOVED —->
Plug Tablet into the Power Supply for a CF-20
Boot up to BIOS, Reconnected keyboard, and confirm the touchpad.

I'm not kidding you. Simple! I was pulling my hair out, reinstalling drivers, windows, bios flashes,...