The most current iOS upgrade turned on a feature to tell you if a part was detected that the phone could not verify as a genuine Apple part. Since this iPhone 11 had its cracked display replaced at Batteries+Bulbs a while back, I guess they don't use genuine Apple parts. That might be more important to some and less to others, and while it's nice that Apple is letting you know in case you didn't know, it's also self-serving as they want you to have your phone serviced at one of their stores.
Regardless of the merits of the above, the wrong thing Apple did was make this notification stick around without an option to dismiss it. It might sound a bit picky, but we're annoyed with those red bubble counts hanging around as shown on the Settings app icon on the righthand picture below. Fortunately, it should go away in 15 days, trusting the ZDNET article at the link below.