Yep these are super common, especially on days spacex is launching starship. They only live broadcast it on X so it allows these scammers to step in and attempt to trick people.
I watched the last starship launch on a scam YouTube stream. It was 30 minutes delayed, which a thought was because Musk wanted to promote Twitter. They said multiple times that Elon will announce something big after the launch.
Directly after lift off it cut to Elon holding a speech and I only noticed this been a scam channel when he talked about the QR code and crypto.
same. stopped watching youtube live after this, realize that every live video could be a scam or distorted or modified or outdated in any way. weird.