Peertube is essentially mastodon or lemmy with videos. Its trivial to set up compared to the other two. I run a private instance so I cant talk about the rate of issues but from an experienced admin perspective, its no more of a problem to set up and run than the others.
But I too think that long term it would be great to have more user friendly setups as to enable less experienced folks to host it.
I‘m currently trying to bring up a rather complicated setup using garage. Garage on Homeserver behind firewall, vpn relay, peertube and other s3 compatible services on a vps. Garage works rather weill, the vpn is giving me a hard time though. Can recommend.