Hey, maybe not quite video gaming, but have you thought about getting into DnD or Vampire: The Masquerade? DnD has lots of open groups to find on Discord or services like Roll20. That gives you voice communication so you are talking and playing with real people. VtM isn’t as popular, but is a really great setting and does have at least one massive Discord server for RPing with others (https://discord.com/servers/seattle-by-night-517427294915002371).
Moonlight/Sunlight are both really great options. The only problem I’ve encountered with either is that the mouse cursor is encoded into the video stream itself. It adds a little bit of lag when moving the mouse and makes it feel not quite right. Steam doesn’t encode to the stream, so it feels much more responsive. Parsec doesn’t either, but it does not support hardware decoding in Linux so you’re going to be stuck with an added ~10ms decode time.