As the title suggests everytime I open the Monzo app I get a floating notification at the bottom. Only happens with Monzo, I do have other banking apps on the phone but this only happens to the Monzo app (see screenshot).
It cause no harm but is just annoying, btw the phone is an Oppo 10x zoom.
That looks like some sort of launcher overlay. I’m not an Oppo user, but the display suggests control over certain system settings (not Monzo related)
I don’t see this at all on stock Android, so it may be something you can disable in your phone settings - specifically check the app settings/permissions in the Oppo settings.
I bought a OnePlus Nord 2T recently (I believe OnePlus and Oppo are closely related). The phone is convinced that Monzo is a game and kept nagging me to choose gaming mode for the app. I couldn’t find a way to convince it not to do this so ended up just clicking OK and now I get this appearing for a few seconds every time I start Monzo: