I turned on the foveation level to the top high, but the effect was not visible in the compiled game.
UPD. After some tests, I came to the conclusion that the functions: in the Forward Renderer Data, these are Renderer Features --> Render Objects with at least events Before and After Rendering Transparents; in the Universal Render Pipeline Asset [Hereinafter URPA], this is the Render Scale, lead to disabling foveation. Also, these functions lead to a breakdown of the safe boundary, by the way, point Depth Texture in URPA also leads to this, but only if the point Depth Texture item was enabling on the scene in the camera.