I've heard many tales of actors/comedians/"personalities" being way more subdued and quite different when people encounter them in RL and I can understand that, I think there's always been a thing where people in any sort of entertainment industry have a stage/camera persona and then their real one, and also nobody can be "on" all the time.
For me with RR there's just an off-putting undertone that adds to an overall unappealing vibe about him. I agree with people who've said he seems controlling, maybe that's what it is.