Almost all Steam games (old and new) run on Linux with no further modifications. I'm running Elden Ring, Dark Souls I Remastered, DS2 SotFS, DS3, GTA V, Sekiro, Valheim, XCOM 2, Hellblade, Noita, BioShock Remastered and Infinite, Celeste, and dozens of others. This is a relatively recent development, and the only "technical" thing I've had to do is tell Steam to run games not verified for Linux with Proton. You don't even need to run Ubuntu; I've been using Arch and NixOS.
Proton is a great piece of tech and gaming on Linux is the best it has ever been but we are far from a world where Windows and Linux are equals at gaming.
When you want a play a specific game it is still the case that it might work on Linux. If the game is on Steam and doesn't have multiplayer you can update the might work to probably will work.
However, the comment I was responding to was claiming that running games on Linux was easier than Windows, which is only the case for old games. Their claim that performance is great is also a bit suspect since most games will perform worse on Linux than Windows but performance is usually "good enough" on Linux so I can see where they are coming from.
Anyways, I agree with the people in this thread saying that gaming on Linux is great and a viable option but (as per usual) people are hyping up Proton and Lutris and Linux to be better than they are. Windows is still by far the best choice if you want to play games on a PC.
I don't know what your sources are, but for me Linux recently took over prime position for gaming. I've been dual-booting since forever, but it's many months between every time I boot up Windows, and every time I'm now reminded that the lead it had is gone except for one thing:
- The performance difference is small enough that I don't notice.
- Audio setup is now easier in Linux (using PulseAudio and, since ~6 months, PipeWire). I had the worst time getting Windows to output to the right place.
- I can't remember the last game which didn't work in Steam on Linux, even if it's not officially supported. They do have a huge incentive to improve Linux support now that their handheld console is running it.
- Windows supports more than 8 bits per colour channel. The setup is annoying and fiddly, and it doesn't always work, but damn does Elden Ring look good in HDR.
I've been using the official AMD/NVIDIA drivers (on both platforms) most of this time. The NVIDIA driver kept crashing things so often I switched, and the AMD driver has been rock solid.
