What does it mean by removing X11 support?

Thinkpads only share the brand name. 2 different models will have completely different hardware.

The fact that something might work well on one model doesn't necessarily mean it will work well on all black computers that are covered in rubber and have a red LED on the outside.

Wayland works, it's libinput that doesn't like the touchpad on my model. Unfortunately Xorg supports multiple drivers while wayland only supports libinput, so that blocks me from using wayland entirely.

I hope it's clearer now.