Change aspect ratio

[rydennoah]

I dont know if this is tge best place to post but i was wondering if there was a way to change the aspect ratio of a phone (by adding black bars). My phone (oneplus 7 pro) has a 19.5:9 aspect ratio wich alot of apps are not built for. Oxygen os automatically removes the black bars wich works fine for 99% of apps, but some apps stretch when removing the bars. I was wondering if there was a way of adding bars to certain apps.

 

[ocnbrze]

not that i'm aware of. you may have to root the phone to change anything like that.