Free your wearable from sucky, proprietary apps
Happened across Gadgetbridge the other day:
Gadgetbridge is a free and open source Android application that allows you to pair and manage various gadgets such as smart watches, bands, headphones, and more without the need for the vendor application. So in short, you can use Gadgetbridge instead of relying on your gadget's own proprietary app.
A worthy mission!
When my iPhone eventually gives up the ghost I will almost certainly switch to an Android based OS. I'm eyeing GrapheneOS. Nice to know that there's an option for syncing my workout data wirelessly without having to rely on Garmin Connect.