I accept that the powers-that-be don’t want me to do it, I understand that the foolproof user experience is to just play a game made for windows on windows, but if that’s how we lived, none of us would be gaming on linux in the first place.
Outside of the download/update of a game, the files should be read only. As long as the files have the right data in them for a given OS, and the OS has proper support to read the files, then I should be able to load them and execute them. Any little permissions or metadata quirk that prevents that from happening is a bug as far as I’m concerned.