AFAIK if you open an instance videos are hosted in your instance, and may be replicated in other instances via Federation.
Also it supposedly can work p2p if mutiple users are watching the same video it distributed the download. In my experience nowadays it always end using http download.
Moderation an everything about ita users fall into the instance host and moderators. I don’t know if you can do an approval system, I would suppose so, but I’m not certain.
yessikg@lemmy.blahaj.zone 1 month ago
Most peertube instances are isolated from most of the other instances to avoid hosting a ton of videos. Honestly, your instance doesn’t have to federate with other peertube instance since most people leave comments from other fediverse apps