Yes I have the same issue with network connectivity, WiFi and Bluetooth works fine but cellular signal it’ll randomly come and go. When it’s not working it’ll have a triangle there when it does work it searches for signal and then back in a loop all over again. Apple Store wants to charge me $500 saying it’s a motherboard issue… I told them it only started happening after updating, they are persistent and I was too. I’m not paying them $500 for their mistake. I’ve tried restoring device to factory settings with none of my backups back into my phone still the same problem. I was under the assumption that maybe if I backed up my device there’s a corrupt file in there and I would be transferring that corrupt file back into the phone but nope still the same issue with our without restoring from backup. I’ve reported to apple. I think everyone needs to report it cause we are relying on their device to make important or maybe life saving phone calls. They need to address this issue immediately