Me too in my new iPhone 12 mini's iOS v14.7.1 (I didn't check before the upgrade) with VZW. Old iPhone 6 + don't have this problem. :( Weird that an iPhone 11 Pro Max's iOS v14.7.1 didn't have this problem. Confused!

QRIS_M: You can't downgrade iOS versions. :(

I read iOS v15 beta fixed it? Has anyone tried it yet?

Ooh, iOS v14.8. I wonder if it will fix this issue. I'll find out later today after I do a back up and upgrade. Did anyone try it yet?

Interesting. I got a Verizon Wireless carrier update and my cellular signal is better now? We'll see.

Please remember to report this issue through https://developer.apple.com/bug-reporting/.

It seems like Apple doesn't care. :(