In the beta and still in stable OneUI 3.0 my WiFi calling option keeps disappearing.
It is there every time straight after a software update, but then and time the phone turns off/restarts, the WiFi calling setting goes away, and you can't find it even by searching in settings.
Even weirder, when I just did my first restart since the stable update, I immediately checked my quick settings and it was still an option, and then I watched it disappear.
This happen to anyone else? I'm in the UK unlocked.