Netflix faces the same challenge that Facebook does with the news feed in that they're trying to combine two functions into the one interface that the users are familiar with.
Netflix, for example, could easily have multiple modes. A discover based on my past preferences/popularity mode and a categorical listing mode. The problem is them blending these two together and then prioritizing their content arbitrarily over other better recommendations.
[1] - https://reelgood.com/
2. That's well hidden! Thanks for the tip!
From third party sites that index Netflix content, looks like they have a little under 3000 movies, most of which I’ve never heard of.
Versus Disney+, which seems to have over 600 movies with quite a few big titles.
Though as other commenters note, making the interface nicer for the user is, apparently, contrary to their interests, or they'd stop doing the exact opposite so much.