Ability to filter out already watched entries would be a massive improvement.

Not what Netflix has going on, that’s for sure. Lemme look by years, genres, ratings. Browse collections by actors, directors, studios - bonus points if I can look by things like “What movies/shows have both of these actors?”

Netflix’s interface used to be decent, but it has declined a lot.

That's a wonderful question I too wonder the answers for. It was fun to cruise around the isles and see what you could find to watch for the weekend vs your friend or partner and then get popcorn and other snacks.