The 4G internet reportedly no longer works after the upgrade. Seems like the cdc-wdm0 gets replaced by a ttyUSB2 device in the nmcli listing, and attempting to bring it up results in this:
# nmcli device up ttyUSB2
Error: Connection activation failed: PPP service failed to start.
This seems to happen despite mmcli -m 0 showing a registered state with access tech “lte”.