Kde is working really well on linux-surface. Had to change the OSK to maliit(?) but everything I need works. I haven't tried to install the camera driver because I never needed it. Stylus works really well ootb. Use it with Krita. Screen rotation works great and I use it as an e-reader. I choose an easy arch distro because disk encryption works with the native keyboard although it has been some time since i tried a non rolling distro and other distros could have addressed the startup keyboard issues by now. 10/10 would recommend.

Posting from a Surface Go 2 running Debian Trixie with Gnome+Phosh. Everything except the webcam just works on the stock kernel (for webcam support you need the patched Surface kernel). Vanilla Gnome is fine, too, if you use a hardware keyboard. I run Phosh because the onsceen keyboard is much better than Gnome's.