necro-posting, but after messing around a bit it seems it "kinda" works lol. Like we can't get opera gx so to speak, but we can at least sync opera with opera gx. I have a pc with windows and opera gx as my gaming pc, then I have a laptop that has windows and ubuntu on it. Sadly we can't get opera gx still on linux, but at least we can sync between opera gx and opera lol... so close but so far