I love Foss and Linux, but to be honest I recently switched back to Windows 10 from Ubuntu and some other distros, cuz gaming issue and some hardware issue and nvidia issue. Linux needs lots and lots of improvements.
Yeah, Nvidia has to work out their Wayland support before I'd recommend using Linux in your case. Much of Linux (including in gaming) is improving because of wayland but Nvidia's shotty wayland support makes it hard for their users to get the benefits.
I mean, I can understand the spirit of what they were getting at. It is a bit exhausting that in the tech community gaming comes up all the damn time as a demerit in the MacOS/Linux space (while the later is pretty painless lately) as though its the majority usecase. Heck, many deem Macs as "useless" because they aren't a target platform for gaming devs.
Calling gamers "whiny" is a touch harsh. Sure, buying a console makes sense for a good section of consumers. If they plan to buy a device that's only for gaming, is easy to use, and is relatively cheap -- I could get it. Especially since many game studios seem to focus on optimizing for consoles and don't fill their titles with weird anti-piracy garbage on them.