As far as I know emby is a jellyfin fork that I think they took closed source? I also went the emby route after getting annoyed at how much Plex was pushing their own content. Emby felt more polished to me than jellyfin, I get that there is some community resentment over some of their decisions but so far I haven't had any regrets and have more control than with Plex.
Family Link works okay for Android... It is google first party. Wish I could find something that worked for multiple platforms in the same app, but also that would probably be its own nightmare.
I also prefer to have no smell, speed stick makes a unscented deodorant and I have a scentless body wash, havent found a good shampoo yet though. Just using head and shoulders.
Also remember that your parity has to be more or equal to the biggest drive in your array. If you buy a 10 but don't have another 10 you must use the 10 as parity.
Had a subtallar dislocation almost 2 years ago so that was fun. 0/10 recommend sticking to periods. Proby.