Android Q Desktop Mode - control secondary display I tried new Desktop Mode on Android Q Beta 3. The problem is that I'm not able to move mouse pointer to second display, so I don't have any way to use Desktop Mode.

Google Pixel XL, display is ASUS ZenScreen MB16AC, connected throught HUB via DisplayLink presenter (with USB-A)

Question: How to move mouse pointer to secondary display?
You should keep in mind that Android Q with it's Desktop Mode is still very much in beta and not a finished product at all. 

There's still lots of bugs and problems with it.

The best you can do is wait for the official release later this year.