I never lift the phone above my head to record. I'm a concert clip recorder, but I'm not a dick.
As for watching it later, I think the video I take from my seat is different to my brain than anyone else's video. If I see a clip of a band I saw from someone else or a different venue, it wouldn't have the flashback effect. But when I see and hear my own, and yes the iPhone XR audio is almost as good as professional recordings from the 90s, it causes a crazy memory flashback. It's like experiencing the show twice.
As for watching it later, I think the video I take from my seat is different to my brain than anyone else's video. If I see a clip of a band I saw from someone else or a different venue, it wouldn't have the flashback effect. But when I see and hear my own, and yes the iPhone XR audio is almost as good as professional recordings from the 90s, it causes a crazy memory flashback. It's like experiencing the show twice.