My experience with modding games while using Proton on Linux (without Workshop support): It’s atrocious, cumbersome and even outright does not work for some games because communities tend to build a Mod Manager (that then other mods start to hard depend on) that does not work in that environment at all. I’m at the point where I don’t even bother trying it out if there’s not workshop support.
The way those mod loaders work for games that don’t have built in mod support is often by using Win32 APIs to inject the loader into the game process like a virus. It’s unlikely that injection mechanism and subsequently finding the relevant game code works correctly on Linux under Wine. Mod loaders that involve modifying the game files or placing extra DLLs in the game directory might work, but might take some extra tricks.
My experience with modding games while using Proton on Linux (without Workshop support): It’s atrocious, cumbersome and even outright does not work for some games because communities tend to build a Mod Manager (that then other mods start to hard depend on) that does not work in that environment at all. I’m at the point where I don’t even bother trying it out if there’s not workshop support.
The way those mod loaders work for games that don’t have built in mod support is often by using Win32 APIs to inject the loader into the game process like a virus. It’s unlikely that injection mechanism and subsequently finding the relevant game code works correctly on Linux under Wine. Mod loaders that involve modifying the game files or placing extra DLLs in the game directory might work, but might take some extra tricks.