I think we missed each other. My overall point is that aside from the hosting/serving, other federated networks/services could pick up the slack. The Federated Youtube doesn't have to mirror Youtube exactly, or even mirror functionality all-inclusively (ie with reccos and comments etc. built-in), but could lean on other federated servers to provide similar functionality.

As I said, comments could be a lemmy/mastodon thread. Recommendations or other discoverability could be other threads or maybe even a completely different service that hasn't been created yet, I don't know, but I do know that any reco algo needs to be open and subscribed to, not jammed down our throats and gamed. In the meantime, everyone's got a search engine, right?

Ultimately I don't live in this social media/open source/development space too much, I just saw a way for these things to be built/used together to achieve an effect, distributing dev and process overhead and load across all the networks. I don't have any insight on the bigger, more pertinent, file distribution problem.

At best word of mouth or users sharing it on lemmy (etc.).
Good luck getting the niche stuff out of the bubble like it sometimes does with the algo.