Seeking Help OPPO FIND X3 LITE

[Bernie9900]

Hi, I just received my new Mobile OPPO FIND X3 LITE, and I'm frustrated with a thing that comes up on the screen and takes a LONG time to disappear.... I've taken screenshots of it as trying to describe it is difficult.... Basically I'm wondering if it's a setting that needs to be changed or something else? I hope someone can help me with this.... I'll attach the screenshots...In the pictures you will notice a black banner near the bottom that describes what I've recently done... Like if I close apps I free up space etc.... Anyways If anyone can advise if be very grateful...