I got to wondering about this again, what with all the major problems that Win11 patches are causing. (The boiling pot is finally getting too hot for me.) But I have some applications that I might still need a Windows machine for, so I was hoping to be able to use Multiplicity to connect from a main Linux box to a Windows box.
Back on September 21st, Stardock announced that M4 is available on Steam. Steam runs on Linux, and it uses Proton to run games. I haven't tested this yet, but I'm wondering if Steam might be a workaround for something like Multiplicity. If so, maybe WINE would work as a non-Steam middleman.
Kinda sucks that we'd have to resort to middleman software, but it is what it is.