In terms of becoming a real competitor of YouTube, this is a huge step. Accessibility is a must.

Amazing news!

You can use https://sepiasearch.org/ to search across most PeerTube instances, and you can use NewPipe to view videos too (you have to add each instance you care about manually)

I haven’t used it much either as often times the instances I would make accounts to would go offline on me

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It’s a federated system just like Lemmy, Mastodon, …

(One of the) first step would be to find an Instance that you might like to join. https://joinpeertube.org/instances

Then, an App that can also handle peertube would be e.g. NewPipe - which is also a very good 3rd party app for YouTube and alike. https://newpipe.net/