Navigation bar always ends up overlapping apps. Any way to prevent this?

https://sh.itjust.works/post/4204876

Have you played with the “full screen” settings? usually at settings > display > full screen apps
Spent 20 minutes trying to find this settings. It doesn’t seem to exist on my Pixel 4a.
I can approve you that the settings mentioned here doesn’t even exist in Pixel 4A. Only some ROMs add this option into their settings on their own, but it’s not a stock Android feature.