Probably a dumb question, but...
I have just published an update (SDK 6.4.2) to my app (raceQs Ver 4.6) and downloaded it to my watches (Fenix 7 and Fenix 5) to check and find that Settings are not enabled:
Neither in ConnectIQ on my phone (Only option is "Uninstall", not Settings) or from Express. (Settings is greyed out - unable to post screenshot).
Settings are fine in the Sim.
It looks like a side-loaded app (no settings), but no, I downloaded it from the App store.
Help.