Peertube is a relatively popular federated-decentralized video platform, a couple of serious youtuber even have a mirror set there. But if you look for a place to share informal video with or without personal data it’s better place than youtube (When reddit r/guitar had the weekly* first take challenge* I uploaded a few video on peertube because I don’t want to tell google or the world about my bad but fun attempt jamming a guitar for an online challenge)

Pixelfed is a photo sharing app, I have an account there but don’t use it as I am not that much in photography, They do even have an instance dedicated to artists

I heard about Calckey/Firefish/Misskey but not really sure what’s the benefit over Mastodon

Diaspora* is the great old one of federated social network last time I opened it it was full of conspiracy nuts