Is it possible to deactivate the Windows 10 Taskbar on the primary Display and use the displayfusion taskbar instead?

I want to do that, because I can not use "right click on tasksymbol and move to second screen" function with the windows taskbar.

I dont think you can disable the system taskbar as DF copies it but one of the devs will advise you better than me.
There are two simple ways to move an open window, the first is the DF icon on the titlebar next to the Min/Max/Close buttons, clicking it will move the window to the next screen or the Windows keyboard shortcut, you can use to move the focused window either left or right. Press the Winkey and Shift together then hit either the left or right arrow key to move the open window (that has the focus).

As I said maybe the devs have a better solution but that is two work arounds.

OK, Winkey+Shift+arrow works. Thank you very much

Glad to help