Oh, I never thought of Nebula as a curation service, just a hosting service that the creators I like seem to prefer (who knows why, maybe they get paid more there or have some promotion with them?). But I eventually moved back to YouTube too, for unrelated reasons (auto captions etc.)

I don't think any video site these days can be easily "browsed" if you want to avoid the garbage :( It's all about picking and choosing specific channels/creators to follow and ignoring the crap... sadly.