I think the main difficulty with Linux desktops is this “all or nothing” approach to the OS.
Recently got a Steam Deck and most of the games really just work, but that’s a handheld where I play solo. On desktop I mostly play online with friends.
I really don’t want to constantly switch OS depending on the anticheat situation when we play something else.
And then there is software (fusion360, simhub) & hardware (3d mouse, joysticks, ffb wheel, maybe VR?) that just works on Windows.
So instead of maintaining Windows & Linux on dualboot I just stick with Windows on the desktop.
And I used Linux for a long time on my laptop (and can’t wait to ditch MacOS), still use it on servers, but the desktop is just a whole different beast.
Those who tried Linux and went back to Windows, what caused you to go back to Windows?
Additionally, what changes are necessary for you to be able to use Linux full time?