_proton_fs_hack makes the mouse patch fail when set to true.

[em-et]

When I set the option _proton_fs_hack to "true" in the customization.cfg, it errored out like:

==> ERROR: Patch application has failed. The error was logged to [Some path]/wine-tkg-git/wine-tkg-git/prepare.log for your convenience.

but it was the mouse patch that failed. I tested it without that option, and it worked like a charm.
I think it is best to add to the tutorial, specifically in the compilation error section, to avoid using the _proton_fs_hack.

[karimrir1]

There's a fshack variant of the mouse patch. It's in the community patches repo https://github.com/Frogging-Family/community-patches/blob/master/wine-tkg-git/roblox_mouse_fix-fshack.mypatch

[em-et]

Oh, that's great! I didn't know that existed, so I think it is best to add it in the tutorial.