We have decades of training in the consumer market for very simple install patterns using UIs, and minimal messing with configurations. The people in gaming who overclock and tweak their settings are a huge minority in gaming. Those people are the ones most likely to be able to grok switching to Linux, but when they get there and find that most of their favorite apps don't work like they are used to, they go back to Windows or Mac.
My hypothesis is that for Linux Gaming to truly take off, you'll need a true desktop (not steamdeck which i use weekly) that makes it a handful of "clicks" to get whatever they want installed working. That means you'll need a commercially backed OS where developers maintain all the things needed to support near infinite peripheral connections for a variety of use cases, clear anti-cheat interfaces, and likely clear DRM hooks as well.
I wonder why. Something like Linux Mint isn't materially different from Windows in terms of UI. Any peripheral sold as "Linux compatible" that you plug in will just work, and Steams allows to play practically any game that does not require an invasive rootkit (aka kernel-level anticheat).
I think a good first step would be to start using common FOSS programs such as Firefox, Thunderbird, VLC, LibreOffice on Windows during a transition period.
People for whom the computer is just an appliance with limited applications (and who recognise their relationship to the computer as such) might even be better able to switch, provided that everything is set up for them. My elderly parents used a Linux box I set up for them for years at some point.
Edit: I'd guess a lot of them just follow whatever instructions they are given, and create the online account. If Microsoft thought there was a chance of serious rebellion, they wouldn't be doing it.