My thoughts exactly.

We need a client for short videos like shorts or tiktok.

But otherwise I think theres plenty of good social clients to replace twitter Facebook Instagram every streaming platform etc. some of these clients aren't there yet, few minor improvements but all that shit is covered already.

Once we have that tiktok style client that's pretty much "social media" covered.

It's all that other stuff you mentioned and so much more. Essentially everything the google makes should have a nostr based alternative if there isn't already a viable alternative for it