Spectrism

Runs fine on my side. Have you tried what’s mentioned in the release notes, i.e. also enabling WoW64? Oddly enough, it works fine for me without it, but since REDlauncher seems to be a 32 bit binary, it might be worth a shot. I also use Steam Native instead of the Runtime version, but no idea if this will make much of a difference in this case.

Is there no -bin version available for those packages?

Not completely, but the Brussels effect still applies to some degree.