Why is the result of zooming the browser window with Ctrl + different from the result of the device simulator in developer tools?

Question

css

Good afternoon!
Please tell me:
Why the result of scaling the browser window
using Ctrl + joxi.ru/52ag0vXC4bjKDr
differs from the result of the device simulator in developer tools
joxi.ru/VrwEabyFO89n12
In the first option, when we scale (Ctrl +) - there is an indent!
In the second, when we select the 1920 * 1080 indentation as the simulator - no!
Who (and what) - to believe?
Thank you!
P/S I'm already updating the page, clearing the cache :)