The deck uses PDC?, basically it has a negotiated power draw. The charger is around 2-2.5Am(I can’t remember anything today), 45W and can range from 5-15 volts. I’ve had usb hubs with memory sticks/cards, keyboard, hdmi and external ssd all plugged in with zero issues, although if I use my usb-c extension cable I need to run it from the power cable to the hub and not the hub to the deck as things get very flakey configured with the second option.
Last I remember Ethan was neck deep with Faudio project in WINE/Proton. Looks like all of that work may be nearing completion if he is getting back into porting.