This is my take as well.

They're sticky because they stay focused on their specific domain, and they work well.

I also really don't understand the value pitch on "6 apps no one can use" in the post.

I publicly host Seerr and Jellyfin for my family, and they use that combo just fine. They explicitly don't get access to see any of the sausage making under the hood.

Given this doesn't support music yet (according to op) and you still need to host plex or jellyfin... what is the value statement here over seerr?

I'm working on one myself, but I probably won't ever release it to the world. I just want one that's simple enough for my wife to use, so we can cancel netflix etc. I need replicate the experience of browsing what's new or popular on her phone, watching trailers for them, and then a single button to download it and getting notified when it's on plex.

Over the years we didn't have AI. Maybe it will become abandonware; but maybe the development will keep up thanks to AI.

For example, I've been using a Spotify replacement called Spotifast for a month or so. It's way better than the official Spotify app, and it's all vibecoded by one developer, and it gets lots of updates (it's basically a 1-to-1 clone of Spotify, plus additional features). It wouldn't have been possible before AI, or at least not that easily.