Arc Hub is compatible with all USB-C/Thunderbolt 3 equipped MacOS & Windows 10 devices. (Thunderbolt 2 or older devices are not compatible; this includes monitors, hard drives, etc.).
Dual extended displays is supported but be both will displaying the same extended screen (In total you will have two unique desktops rather than three, with your Mac being one desktop and the external monitors being the second desktop). This is due to a “one video output per port” restriction Apple has placed on it’s Thunderbolt 3/USB-C ports.
Pass through charging is currently not supported on Dell XPS 13 & 15, Lenovo Yoga 900 & 910, and the Samsung Galaxy Tab Pro S. If your Windows laptop does not support pass-through charging via the USB-C port then Arc Hub pass-through charing with Arc Hub will not be possible.