The same reason most foss projects are barren. Plex focuses on ease of use and giving people what they want. Users mostly don't care about the sub. It's easy to use and works.

Meanwhile jellyfin doesn't have a remote first interface that isn't absolute dog shit and I need to set up a reverse proxy and potentially idp to get the ability for my family to log in.

This shit isn't hard. The answer to the community is, make the product better, and start bundling shit in. But I'm sure I've already offended some nerd who thinks this is all just so easy and requires no work to tell me I just need to learn Linux better. And that putting in a reverse proxy by default will make maintenance a pain and I just have to put portainer and LE to fix it.

The shit y'all are bitching about is the problem.