not flushing its lookingI would not suggest downgrading - rather use "Migrate", backup your apps and restore in a clean flash June 2021.
I have never needed to look for immersive statusbar hence I do not know of any mods (That doesn't mean that non exist and work.)
I use the Magisk Module "Fullscreen Immersive Gestures" for immersive navbar.
checking for digest file..........
E30004:ths package is for device: ginkgo.....
this device is a20/////////////
what do i do naw