if you're on primal.. left hand menu -> Explore -> one per follow

This exists, as a DVM: nostr:naddr1qqgrvctzvcck2dfhvycrgdtrxccrvqg4waehxw309ahx7um5wghx77r5wghxgetk9upzq0n9h2qka7auaesrwcsg2n443dx85znv3f9n368tuh5ljzzx3fkvqvzqqqru7csd9tcp

Here will be my last post

For those saying use a DVM, DVMs are massive overkill for this simple task

The "one per follow" dvm kind of does that.

would also love to only see a single post once, not the same post reposted by everyone I'm following in my feed

Genius!

It would also be cool to see maybe top 3-5 post from each follow for the last day/week/month.

everyone needs the nostr algorithm, but they don't know it yet