I like your spirit, but I don't think a Chinese equivalent to Google Play Services would be more desirable
eco_game
I find the Jellyfin webapp a pretty bad experience on mobile, compared to FinDroid.
I really like the webapp on my LG webOS TV (especially good with the Magic Remote) though.
So I guess it kind of depends on the platform.
I actually use both apps, I find Organic Maps a lot nicer for looking at a map and navigating by foot or bike, and Magic Earth seems to pick more sensible car routes some times. Also the live traffic data makes it more fitting for car navigation (Organic Maps doesn't have traffic data).
Jellyfin did some work on integrating the Skip Intros plugin a lot better, AFAIK you just have to enable it once on your server and then once in the settings of all Jellyfin web players.
As for apps, there are some good native third party apps which I mentioned here.
Was this with the first party Jellyfin app or with Swiftfin?
If it was with the first party app, I'd definitely recommend giving Swiftfin a try.
Jellyfin has native apps for Android, Android TV and iOS.
Does Plex offer native apps (that aren't just stripped down browsers) for more platforms?
I can highly recommend Magic Earth as a Google Maps alternative (also available for Android). It uses OSM data and has some traffic info. It's not as good as Google, but it's the closest I've found so far.
AFAIK you can enable the snapcast server and then use an app like SnapCast to stream to your mobile devices.
This program is a client for the very solid Tvheadend TV streaming server. Tvheadend supports pretty much any source you can think of, but is a little more complicated to setup.
Tvheadend is a selfhosted service meant to be run on your own server with your own TV dongles / IPTV channels / etc.
If you only want to watch TV on your PC, doing so with something like Kodi is probably a better idea, as Kodi also supports USB tuners and is simpler to setup (doesn't require a separate server).
I was pretty neutral towards Ubuntu, up until an automatic system update removed my deb Firefox and replaced it with the snap version, even though I specifically set the apt repo to a higher priority.
The entire reason I left Windows is because I don't want (for example) Edge shoved down my throat after every update, and yet Ubuntu has gone and done the exact same thing with snaps.
After literal hours of fighting, the only solution I found was to fully disable automatic updates. With Pop OS I have all the benefits of Ubuntu, but I also get a company (System76) that does cool stuff and doesn't try shoving snaps down my throat.
I really like Pop!_OS, AFAIK it doesn't have any telemetry. It's basically a Ubuntu fork but without the stupid Ubuntu stuff, and they're currently even working on their own Desktop Environment.
You actually can still use it, there's some folks on reddit trying their best to keep it going. App support is very poor though.