refreeze

It's an alternative "app store" but for only free and open source software, highly recommend checking it out!

Yes workout tracking works fine, not quite as polished as Connect but it is functional.

You cant use it to create or manage workout plans. It is feature complete for the health data as far as I can tell (HRV, sleep, etc).

I think it is only on F-droid

Did you put your watch into pairing mode? On my Forerunner, I have to go "Settings/Connectivity/Phone/Pair Phone" on my watch.

Unfortunately they don't include a GPS.

My Forerunner 165 is well supported, nearly the same as the official app.

I also just deleted my Connect account. I have had it with these greedy American corporations. To anyone looking for an alternative, I highly recommend checking out Gadgetbridge, it still lets you use your watch with almost all the same features, only the data never leaves your phone.

I just set up wanderer and workout-tracker. Along with installing gadgetbridge on my phone, I now have a completely self hosted fitness/workout stack with routes, equipment tracking, heatmaps, general health metrics like HRV, heart rate, etc through my Garmin watch, without having Garmin Connect installed. Awesome!