I am facing the same issue since i updated my device to IOS14, and IOS13.7 was working perfectly fine but not after the 14th update,,, I went to apple store for service appointment, all they offered is to hand my iPhone 11 pro max for 10 days before i am eligible for a replacement i was like no i am not spending 10 days without a phone.

I honestly think that apple’s software engineering unit are trying to get a revenge of apple’s management for some reasons, not sure if they want a pay raise but the management are not accepting or they have some demands and the management don’t consider it. I will never believe that Apple tech engineering unit are not able to fix this issue within a day and release and emergency software update for the public to solve this. I’m very convinced this is an internal Apple issue between the engineers and other unit and customers were used as victims to pressure other units.. good bye Apple and congratulations as you’ve just LOST a very loyal customer because of this silly issue that you do not want to fix ASAP, I’ve been buying all apples iPhone products since iPhone 3Gs until 11 pro max. But because of your acts now I’m shifting to Android with Samsung with no regrets.. good bye Apple