This graphic bug affects all minecraft bedrock versions since 1.18.30
It doesn't affect specific areas, it happens in every biome and in every game mode.
It happens only when fancy graphics are on.
I suspect this bug could be related to the Xclipse920 GPU of the latest Samsung flagship devices. (Samsung s22, s22+, s22Ultra: all exynos variants)
As you can see in the screen recording below, these geometrical shades are always visible. If i'm not moving their aren't moving too (but they are still visible).
if I walk, fly, run or turn my head they get crazy. They look like bugged shades, but they are related to the fancy graphics.
The game is unplayable on fancy graphics right now, I'm forced to play on low graphics to avoid this bug.
These clips were recorded in my survival base, minecraft vanilla. No mods or anything