It’s decent. I’ve got my own instance, but there are many out there that federate together. Thorium was a really good client.

There’s several subdomain of peertube.biz that have different shows from around the internet, for example review.peertube.biz has review shows.

https://beetoons.tv/ has some interesting cartoons.

For some types of tracker, you can use a free and open source application called gadgetbridge.

I use it with my Amazfit Bip, and it works just fine. Since it’s FOSS, it’s something that can be audited for backdoors