while playing Minecraft Preview With Vibrant Visuals graphics enabled and a notification came to the screen like “someone messaged you” or you took screenshot and the screenshot notification came to the screen your fps dropping from 60 to very low thats not problem of the device that is bug and it's annoying im taking the new cinematic photos with the new graphics and fps dropping from 60 to 1-20
This issue is being tracked at MCPE-199201.