I love the idea, but most servers only host a couple of videos, it’s very hard to find enjoyable content on there and it’s difficult to figure out which server could be a good server to make an account on…
I wouldn’t mind a centralized aggregator of videos and maybe it could have a suggestions algorithm as well or whatever. Not that this would be ideal in the long term but it could help get the videos some views and make more content creators see this as a good alternative. It’s not safe on youtube, people aren’t even saying suicide anymore ffs
Edit: Even some renowned german media have their own peertube servers that they feed with high quality videos, but of course they have basically 0 views. (https://peertube.heise.de/, https://tube.taz.de/)

Take a look over at: https://piefed.social/f/fediversevideos if you want to see a collection of videos from a wide variety of instances.
I like subscribing to channels via piefed OR on my home peertube server and use it like youtube subscriptions. I pick the best (or to me interesting) and post it over at !peertube@lemmy.world .
https://peertube.fediverse.observer/dailystats&days=365
Overall peertube is seeing a gradual increase in number of users and servers getting started up. Although its hard to tell with servers starting to implement anti AI and tracking software (makes it hard to find out numbers on certain trackers).