Splitting different windows with tools from the monitor manufacturers can be relatively cumbersome. There is a very nice function in Windows 11 that allows you to set up the individual programmes very elegantly on the monitor. Under Windows 10, you can also use the Microsoft PowerToys, which can also do this. In any case, you can drag a window to the left edge and release it, and then drag a second window to the other edge and release it. Then you have two windows, each taking up half the screen. With Windows 11 you can also do this with 3 windows, Microsoft PowerToys can do this too.