Yes, yes, I know - doesn't affect everyone, some of us resent Steinberg, etc etc - But obviously osxmidi thought it was important enough to dedicate countless hours into helping others with projects that depend on VST3 support (not to mention his inarguably vital work on the regular LinVst). Take a look, maybe learn something new about the tools of the trade:
https://github.com/osxmidi/LinVst3
I don't have the chops (yet) to contribute to the community the way he does, so I'm doing what I can here by trying to engage other intrepid/desperate souls. Please ignore if you don't have hundreds or thousands invested in plugins you enjoy using or simply want to open Windows Reaper projects in Linux. We're incredibly fortunate to have those options.