Actually, seeking a different launcher may not be the need here. I think I misunderstood the error that was shown. It said something like needing a subscription. (Do I need one?)
I forget exactly what it said but apparently I lost all access to my phone through Nova until I rebooted the phone. Until that time, I had to use the default launcher.
Has anyone else seen this? Any idea what may have caused it?
I am in the habit of leaving my Bluetooth and WiFi off unless I need to use them.