also unrelated but the official lemmy app, jerboa, apparently publishes releases to the play store that are only compatible with the latest release of lemmy... so major servers that aren't updated to 0.18 yet are broken on it 
I think an influx of app devs will be a boon to the lemmyverse
there is at least one outstanding issue preventing hexbear compatibility. I think someone on here may have forked jerboa to deal with it temporarily. Long term idk what the devs/admins are gonna do but app compatibility would be really nice.