This has been sitting at the back of my mind for the last year or so, but now exacerbated since even beta app updates are delayed multiple days now, meaning I can't properly test my apps.
Thinks we've all noticed
No longer able to dispute reviews in the app store
The mess that is the new app statistics
Terrible launch of in app purchases and tons of weird accounting going on, at least from what I saw reading that channel, which now seems to be gone
No more dev conferences. The last one was 2022 maybe?
At least the ConnectIQ dev team is still around and pushing new versions, but it seems overall, Garmin is willfully letting this start to die and not actively supporting developers anymore.