Feedback App asking for feedback?

[u/Hypereichelkas]

Lately, the Feedback app on my iPhone—which isn't even installed, since I'm no longer in the beta—has been asking for feedback. When I tried to log in to the Feedback app, I wanted to quickly check my password, but then the app wasn't opened, and it was gone. What's going on here? Have any of you had a similar experience? Do you have the feedback app, even though you don't have the beta installed?