A developer has recently unveiled a video that shows the latest Android Q beta on the Essential Phone, which is wired to a portable monitor alongside a Bluetooth keyboard. With this setup, he is able to take the upcoming Android Q desktop mode for a spin, but he is using an experimental launcher to make it all work.
https://www.notebookcheck.net/Early-demo-of-Android-Q-desktop-mode-surfaces-online.422360.0.html