How to change main camera size freely without scaling?

Hello, everyone. I’m trying to adjust my camera so that when I’m in the play mode I can see it as if I was playing on the smartphone. My problem is that I cannot find any information about how to do that because this is a dumb problem xd, all of the tutorials I’ve watched had the camera already set in the needed position. I’ve tried to rotate it but even if on the scene screen it looks ok, in the play mode it is inverted. When I’ve tried to change it using the right menu it basically remained the same.

So screen2 is what I currently have, screen3 shows how I want it.

Hello. Set the Rotation.z field on your MainCamera to 0. Most likely you want to use this functionality:
[156017-снимок-экрана-2020-04-07-в-144036.png|156017]