Yes and the best thing is the federation with all of these platforms. So you can follow a PeerTube or Owncast channel and receive a notification if a video is uploaded or a stream is starting.

This is the Owncast main directory link: https://directory.owncast.online/

Revolt first, after Matrix but yes.

Mastodon -> Twitter

Friendica -> Facebook

Pixelfed -> Instagram

Lemmy/kbin -> Reddit

PeerTube -> Youtube

Owncast -> Twitch

FunkWhale/Castopod -> Music/Podcast

BookWyrm -> Goodreads

WriteFreely -> Blog