While I upvoted this, as being true for the general population, for me Linux has made it on the desktop (and laptop) much more than 2 decades ago, around 2003, when the remaining problems that had forced me to use dual-booting with Windows had been solved (i.e. when it became possible in Linux to play movies, read DVDs and use TV tuners). When that happened, I wiped out Windows from my computers.
If you have a pro to help you, already for a long time Linux has been fine on the desktop for anyone. My parents, over 80 years old, have used Linux on their PCs for many years, and they did not even know what "Linux" is. That was possible because I installed and configured for them the operating system and all the applications they needed for reading and writing documents, Internet browsing, e-mail, music listening and movie watching etc.
Windows is easy only because it comes preinstalled. I have installed Windows at work on many kinds of computers and during installation I have encountered much more problems impossible to solve for a non-expert than when installing Linux.
Pretty much. I have been using Linux since 1998 but it became my only system back in about 2009 I think. It just isn't that geeky blued together unix-y thing any more. So long as your hardware is supported, thats it.
Yes, the games support was rough but that is almost a non issue nowadays. Thanks to Proton and Steamdeck support, I don't even check compatibility any more on games.