After going down a T6E rabbit hole I stumbled upon an interesting set of Tuya devices: 6–10" LCD panels with built-in rotary controls (which themselves have an LCD display), like this one branded Anjielo F7:
It has a 7" 1024x600 IPS touchscreen, has ZigBee, Bluetooth, Ethernet port, TF card slot, external Micro USB port, and runs Android 8.1.
Like I said, this is one of a range of such devices sold (of course) under different brands (1, 2, 3, 4, 5).
I don’t have any reason for posting this other than that I found it interesting, and I wonder how hard it would be to get Fully Kiosk running on it and whether the rotary control and its little LCD screen could be utilized.