Google Play shows Gadgetbridge update and can't install

So, I downloaded the Bangle JS Gadgetbridge from the F-droid website (i.e. 0.78.0) which works fine.
Now, everytime I open up Google Play Store, it is rather unhappy and wants to install 0.76.1b which is older. Leaving the Beta programme or disabling automatic updates doesn't help. Any idea how I can make the Play Store ignore the sideloaded app?

Afraid not - that's a very strange one... I've never had the Play Store hassle me before and I usually alternate between different versions.

Intersting is that if I open the app properties in Android, it shows me at "app-details in Store" that the app was actually side loaded and not connected to the Play Store. The list of installed apps in the Android system settings shows only one Gadgetbridge app - this exact one...

Could be this one:
https://www.reddit.com/r/GooglePixel/com­ments/18lookd/side_loaded_app_updates_sh­owing_in_play_store/

Google Play users have started seeing updates to modified apps.

Many users like to use modifications to popular apps because they bring some additional functionality that improves their experience. And usually, when you install a modified version, the app doesn't appear in the list of available updates.

However, a few days ago, users started seeing mods in the list of available updates. This is because Google activated the server-side flag MyAppsV3__univision_manage_apps_and_devi­ce_page, which essentially slightly changes the spacing between items and the size of icons (as seen in the image). But it also has the side effect of displaying available updates for modified apps.

Trying to update a modified app via Google Play will naturally end in an error.

*this only applies to modifications that use the original package name

Interesting - that sounds like it! I wonder whether it's worth renaming the F-droid Bangle.js build so it has a different package name?

Honestly though I'd have thought Google might backtrack on that soon anyway...