I know I’d need wine and proton but some more details would be nice on how it should work using bazzite with kde plasma if it help edit: tried heroic and it works, lutris got balatro working through it still not sure how but that’s future me problem but for now it works
Why not use the “Install a Windows game from an executable” option in that same + menu?
Side note though, this would make games downloaded from SteamRIP easier to install under lutris for me, as they aren’t installers, and I’ve been using bottles to generate the prefix for me.