Yep, this really bums me out. Wanted to try plenty of Minecraft mods but never wanted to go to the trouble to set up a secure environment, so I never did either.

As an only-tangentially-related aside, the difficulty of making mods for Windows games work on Proton also bums me out.

I wish some kind of cross-platform, sandboxed modding ecosystem existed solving enough problems that most modders would prefer to use it. I'm not sure that's even possible, though.