Question 2. Screen (laptop)?

As you can see in the picture, I connected a second screen to my laptop. Only problem is, when I want to extend the screen, the laptop screen is the main screen but I want the monitor to be the main screen. (The one where all programs are displayed, and the laptop screen that is used to have Spotify or something open on the side. How do I do that? Is that even possible? Thanks in advance

Phew, I don't know that this is possible. It would just work that you set the 2nd monitor and open the laptop anyway.

Simply swap one with the other in the view (display setting) of the 2 monitors (i.e. Hold screen 1 with the mouse and drag it to where screen 2 is) and tick the… Main screen.

Under windows 10 as far as I know, right-click on desktop → display settings select the appropriate screen and check the "Use this display as main display" below