When connecting a monitor to a MacBook, the scale changes on the MacBook: why?

Question

macOS

Good afternoon.
Tell me, who knows why when you connect a monitor to a MacBook, everything increases in MacBook: fonts, icons, windows, etc.

Answer 1

Settings -\u003e Monitor, uncheck video replay (or something like that) and set the monitor area as separate, also for convenience, you can drag the main menu to the mount if necessary, you will have 2 blue windows in the settings and one of them has a white bar at the top, it can be dragged from one monitor to another.