Bottom of iphone 8 screen flickering?

So a while back the bottom of the screen started to flicker, mainly when i had the brightness up all the way, but now it's worse and happens when i hardly have the brightness up at all

the flickering is a copy of whatever is at the top of the screen at the time, so the time, battery, etc. The flickering does not show up when a screenshot is taken

i recently had the screen change and i'm wondering if that could be what's causing it? I'd like any help since it's sorta distracting and bothers me sometimes

Bad screen.

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