BTT reduces screen size (Macbook 14 pro M2)

I'm not sure if I found a bug or a feature - window snapping in BTT reduces my screen size/resolution as soon as I drag window to snap zone. Menu bar is moved below the notch and some margin is added to all other sides of the screen, reducing my screen size/resolution. I coudn't find any setting regarding that in Window snap settings. Am I only one with this issue?

I've found similar topic Unwanted changes of the screen resolution - #5 by Andreas_Hegenberg
I still don't know what caused the problem, fortunately reinstallation of BTT solves the issue.