As someone who was already only mostly playing single player games, the transition from Windows to Linux was so easy. All my games just work. The only multiplayer game I fuck with anymore is Battlebit Remastered, and that works great.
Since my style of learning is "jump in and figure it out as you go" (impulsive idiot), I've been very impressed with how much has just worked.
I've been afraid to recommend my set up to friends though because I don't want to be their troubleshooter.
I love Linux, but I never expect it to be mainstream or even extremely accessible to typical users. In fact, if it made it to mainstream, it'd probably get ruined somehow by corporate interference, monetization, etc. How you may ask? Well, corporations have a lot of money and influence and I'm sure they could "find a way" if motivated to do so.
This is a dumb argument. Yes, my phone uses Linux. How many of the Android users actively come in contact with the underlying system?
Mainstream Linux means a big part of people actively choosing to install a Linux distribution or buy a computer or notebook with a real Linux distro pre installed (not that lightweight barebones distro they preinstall so they can sell it without Windows but with OS).
I use Gentoo, the family PC has OpenSUSE, only my wife's laptop has Windows... Because guess what, she wants to use what she's used to, what she knows.