Mobile network connectivity on Pixel 5a 5G (yes I know it's EOL with extended support only) is not functioning after this update installed. I have 2-3 minutes of connection with LTE networks followed by "emergency calls only" despite being in an area with very strong LTE signal. Toggling Airplane Mode or swapping between LTE and 5G restores connection for another 2-3 minutes but it is not a permanent fix.
I have reset network settings several times and rebooted after each configuration change without restoring normal functionality. I will move to a new phone before the end of the year but I cannot do so right now.