Since no one mentioned it yet.

You can also add the executable to Steam as a non-steam game and in its settings you can configure Proton as compatibility tool.

That works quite well for some stuff.

Yes, I was also very surprised. The userbase is surprisingly small, even though it runs quite well.

But if I wasn’t into IT, I’d probably have run into issues that I wouldn’t be able to fix. Just little things like proper directory permissions, ownership and such.