I have an iPhone 14 and I’ve had it for almost a year now, but I noticed this today and I couldn’t stop staring after noticing this. It doesn’t show up in any other apps, except for when I go on the app windows. The side of the screen still works, but I’m just wondering if it’s normal or do I need to get it checked. I drop my phone a lot so maybe it’s from that but I’m not sure.

(I have apple care so I’m not too worried about getting it checked)