Interesting . I have yet to see any subtle verbiage changes (or haven’t noticed yet ) that says back-ups are in effect , besides the main pop-up.
2 days in a row now , I have seen back-ups start up at 45 seconds in when I didn’t “linger” on the 1st app launch. If I just kept trying to get a boarding group on the first launch , it would always get to about 2-3 minutes before the back-ups would show up . Also trying the 15 second shut down and start up to eliminate caching , to see when “true” back-ups are starting .