Imagine a nicely formatted table of Netflix movies and shows available in your country. New, potential users can quickly find out if it's worth signing up. Existing users can quickly realize that maybe the service is not worth it.
I also have a theory that if you're stuck looking for something to watch and you've already spent enough time on their platform, you might just settle on something.
They're trying to stay as the "first stop" of when you want to watch something, and the only way they can keep that position is purposefully being murky with their offerings because, yes, it's a 90% shitty collection.
Search is a binary proposition. Netflix either has the content you're searching for, or it does not. Because Netflix is optimizing for total time spent on platform, this is a bad proposition, from their perspective.
That's why the Netflix home screen has become a circus of autoplaying videos, "recommended for you" queues, and "watch it again." The goal, from a UX perspective, is to stimulate you into watching something you didn't come there wanting to watch.
One consideration, maybe your TV app is the problem. Personally, this is why I don't use TV apps.
Some of the people I support make videos, and while they release them early on Patreon itself, they always eventually make it to YouTube. No matter what investment Patreon makes, it will never be as good as YouTube for watching videos. I could watch these videos early on Patreon, but I don't. Not because Patreon's video watching is bad (although it is), but because YouTube is the best platform for watching these kinds of videos. The same thing applies to podcasts (but with different apps, of course).