But legit question, why would you want to play a game in Linux and not in Windows?
I’m not even being rhetorical, I’m genuinely curious if there are games with significantly better performance under Linux (and I’m assuming we would have to be talking about using an AMD card so I’m also curious if that performance under Linux is better than an Nvidia card under either OS), because maybe there are and I’m just totally unaware.
Because Linux is my OS of preference in general, so I play games on it as well.
But it's good to clarify a few things to avoid confusion:
1. You can use Nvidia on Linux, including for gaming. Nvidia's problems are related to lack of support for modern features (Wayland use cases and so on) caused by the fact that their blob driver in not upstreamed. But it's usable otherwise.
2. AMD drivers are open source and upstreamed, that's why it's a common preference for Linux gamers. Performance of AMD is very good on Linux (amdgpu, radeonsi, radv/aco and etc. all provide very good performance). That stereotype that "Nvidia drivers are faster" has been false for quite a while already. When comparing same classes of cards, AMD is totally on par with Nvidia if not better.
3. Besides native games, you can play many Windows only games using Wine + dxvk / vkd3d, Proton and etc. Performance in such cases usually is slightly lower than on Windows, but not significantly. The only problems now remain mostly with intrusive, rootkit styled "anti-cheats" that don't work in Wine, but I personally wouldn't even touch such games, so that doesn't bother me.
To sum up - using Linux for gaming is totally doable, as long as you want to use Linux in the first place and don't want to use Windows.
To clarify, I’m aware you can use Nvidia on Linux. This was a phrased this way because the driver issues you mention impact performance games under Linux.
And again, I understand Linux is your chosen OS — I’m happy you’re so happy. My question was why a person who is using WSL2 would want to run a game in Linux instead of inside Windows. I understand you can game in Linux. That’s not the question. The question is why would a person run a game inside Linux, which is running side-by-side Windows, run the game in that subsystem instead of just using Linux.
I didn’t know if there was a place where a game would get better performance in Linux, making that a better target.
I just don’t understand the criticism of doing something inside a subsystem that could be done just as well/better outside the subsystem. If you don’t want to use WSL2 or Windows or macOS or anything else, that’s fine. But for people who DO choose to use it, I don’t understand why “games inside Linux are slower inside of it” makes much sense.
The argument before was "WSL2 will become good for graphical applications" (which also means games). So I answered, that if you want to run games on Linux, you can as well do it straight on Linux running on your hardware without intermediaries. I.e. it wasn't about running games on Windows.
I’m not even being rhetorical, I’m genuinely curious if there are games with significantly better performance under Linux (and I’m assuming we would have to be talking about using an AMD card so I’m also curious if that performance under Linux is better than an Nvidia card under either OS), because maybe there are and I’m just totally unaware.