Forgot to mention that on 14.4 Beta 2

Am I the only one noticing that when making a call it goes straight from 4G to 3G and after the call is over it goes instantly back to 4G??

Just installed 14.4 Beta 2. Still the same... no change whatsoever...

Same issue as many reported. After installing IOS 14. if I'm close to a provider antenna all works. If the signal is not at max it starts to drop to the point of not being able to use mobile data. Comparing to other iphones, I usually have 1-2 less bars of signal than others when not at full... Tried virtually all tips to no avail. Can't understand how this has not been addressed yet!! Thanks!