Turning Galaxy S8/S9/Note8/9 into Gigantic Roon Remote

Just come across this device with 15.6", 10 points multi touch, will it work??? any other idea? a lot cheaper than 12" iPad pro but only limited a few Android Phone with USB-C and desktop mode.

Vinpok Split - Best On-the-go Touch Screen Monitor

https://www.youtube.com/watch?v=VbDUZwu3VBs&feature=youtu.be

Just tried Roon Remote don‘t support full screen in DeX Mode

After Roon improved its Roon Remote on Android that enable full screen mode, and I received the touchscreen today so I use it with Huawei Mate10 with EMUI desktop mode, happy with it

https://youtu.be/fFSXLsaXx9I