Hi @Decobus!
I’m afraid we don’t support livestreaming as Twitch and YouTube, mainly because it implies a lot of technical changes/additions, and we want to focus on making regular video streaming work well before even thinking about moving on with livestreaming.
It might be worth the installation nevertheless, just to give it a try. It should be quite straightforward. As for the purpose, I find hosting videos and seeing them federate on other instances rewarding, but YMMV. And if you want to spread the word about you videos with friends that are not yet on PeerTube or Mastodon/Pleroma/other networks, there are always RSS feeds 