It's too bad Jellyfin and Emby are such broken and roughshod competitors. They're also unusable, mainly because they're barebones skeletons with only the most basic functions and don't even run well

Have you actually tried them, especially recently? I run my server with Emby, and have had absolutely no problems at all. Not only does everything work reliably and as expected, I've also been able to share my server with multiple family members that are barely able to use a smart TV. I tell them to install the app and what to type for the server information, and then it's like using any other streaming service for them from there.

I'm curious what features you think Emby is lacking that are necessary, or what aspects of it haven't run well for you. I know Plex has additional features that are unrelated to serving video media (like the game streaming add-on), but I wasn't under the impression it has much in the way of media features that Emby lacks.