Supposedly all built in now. Sorry if old news.
https://www.google.com/amp/s/www.an...te-9-wont-require-dex-pad-or-station.html/amp
https://www.google.com/amp/s/www.an...te-9-wont-require-dex-pad-or-station.html/amp
Umm, not 'old news', but grossly exacerbated for click gain. ALL DeX-capable phones are like that. There is NO additional hardware or software in the DeX station other than the USB-C-to-HDMI circuitry and USB-peripheral hub in a fancy case. BUT if you connect a USB-C dongle with the same connections and the correct pinout, ALL other phones that support DeX will prompt you to either just mirror the screen OR kick-in DeX Mode.
But, you can already do that too. Both the newer Notes and S Series phones allow for multiwindow mode and resizing some programs into movable windows. The new Dex options just make it easier to enable and integrate with an external monitor.