I gave up on peertube (especially the app) when I couldn't find a server with open registration. And it is one of the messier services to host that I've tried. I dont even want to post videos. I just wanted to find cool videos and follow them.
Instead of recommending "peertube" itself we should point to servers that have open registration or even better, peerseek.video since the platform is useless without decent discovery tools.