i cant remember off the top of my head exactly which ones, but Wube will take bug reports from vanilla saves and modded saves and fix them all! Great Devs!
They even the concept (with permission) of someone else's game that they reengineered from the ground up to help multithread the game. They're simply amazing!
yes, that is a valid factor. i meant more towards the type of cable doesn't mater. but yes an up to date spec of the cable is also just as important
ive found that the issue in my experience is that X11 only supports a max of 4k60, but Wayland supports 4k120 and beyond. I dont think the cable matters as the same cable im using works on windows with 4k160.
To my understanding that's not valves responsibility (i dont have a source). It wouldnt make sense for valve to be required to make those changes themselves, the publisher would be responsible for making those edits.
I could only imagine all the problems if Valve accidentally restricted/allowed certain regions and got constant sued over it.