I'd love to see a decent package that includes Proton... I'm using a proton launcher written in Rust for a few Windows apps that seems to do okay, but I had to set my proton version in Steam to the one the launcher expects. I would think that it would be easy enough for someone more familiar with Wine and Proton to work through... not sure why the launcher doesn't have a more baked in dependency on Proton that it automagically loads on first use.
IIRC, there have been distros with a better WINE integration, though they haven't been particularly interesting to me. Given the popularity of MINT for starting users, that would probably be a good place to start from. But I don't know where their core team stands as far as the distro's direction.
Perhaps a distro solely focusing on Wine could clean up?