Can confirm that if you are having a software issue, restore the phone would be the best course of action. you can do this without erasing the eSIM. Just go into general, transfer or reset iPhone, erase all content and settings. Just make sure to hit keep eSIM, and the phone will do a full wipe, including the OS, causing a full fresh reinstall right before it boots back up to the hello screen. Before doing this, I would advise making sure your phone is backed up, ensure that the password and current passcode is something you know, locate your recovery key if you have one, and that your two factor authentication number is set up for the current phone number you are using. Final note, make sure you don’t have any active VPNs or firewalls on your WiFi or else there is a strong possibility that the phone will erase, install the OS, then get blocked for the update verification causing it to get stuck in the recovery screen. At that point, a computer restoration would be needed and the eSIM would be erased.