Yes.
In peertube you can setup your own search-instance (needs heavy ressources) an configure, which instances are searched. Or you can just configure your instance to use https://search.joinpeertube.org
You can set https://instances.joinpeertube.org to autofollow all this instances, or host your own instances-instance or just put in manually instances, you will follow.
Peertube is very mature in this things. Much better than every other fediverse-service.
But you have to know, there are so many propaganda/putin/trump/antivaxxer-instances out there, that you really have to curate your followings very well! That's the dark side of federation and selfhosting.
Peertube is an ActivityPub-Service. The same as Lemmy, Mastodon, Friendica, Pixelfed and so on. It federates the same way as every other AP-Service too. And you can follow an peertube-channel from Lemmy as well as from Peertube, Mastodon or friendica!
What is your biased opinion on having unbiased opinions?