I have stopped playing native ports and just prefer Proton when I have the choice. Many devs using Unity & co. just tick the "export to Linux" option and never try the build, which is often much slower or bug ridden.

I was playing Project: Gorgon recently, I was about to refund because it ran terribly on my machine (despite the low end graphics), when I noticed it was using the native build, switched to Proton and got a 200% FPS boost.

As long as I can play on Linux, I don't care what translation layer it goes through.