Phone is operating over apps (?)

[supertech]

My sister and I both have Moto G7 Power phones. Recently she was upgraded from Android 9 to 10 (I haven't received that yet). Today she got a message that, "Phone is operating over apps. Do you want this to continue?". We've never seen this before on any phone. Has anyone ever seen this message before?

 

[Hadron]

It doesn't actually make any grammatical sense, but no, after using Android 10 for a year (and every Android version since 2.1 with the exception of 6) I've never seen or heard of this message.

I assume it's referring to the Phone app rather than the phone in some abstract sense, but what "operating over apps" might mean I cannot figure out. What was she doing with the phone at the time?

 

[supertech]

Hadron, thanks for responding. I agree completely that the message makes no sense and certainly isn't specific enough to be helpful. Unfortunately Sister doesn't recall exactly what she had open/was doing at the time the message appeared. I've asked her to be on the lookout for any recurrence and to immediately take note of what she was doing, etc. We'll see. Maybe it will never appear again.