So I've checked all the possible things to do to try fixing this. But nothing's worked. So I know it's not an issue with Instagram app. Can somebody please tell me why all the Insta stories on my phone are much smaller and are never full screen. See ...

I'm serious. There are no added options to change the app grid size. Not for home nor for the app drawer. I always increase the display width, and now my phone looks ugly af.