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.
Sadly I’ve not got a rig to test it and report back, it’s all AMD linux rigs here and my old hardware steam link has been relegated to a drawer since I got my deck. Greenlight (Xbox series X) and chiaki (PS5) also suffer from the frame pacing issues you mentioned (just an FYI for anyone who may be interested).
That’s good to know, my sons were interested in it, now we can all have a good gaming session together before they decide if they want to buy it. Sadly there is no PS5 cross play (although saves can be linked) so I am going to have to buy the PS5 version to play with friends. Still I don’t mind giving Larian some more money as the game is just fantastic, relatively bug free and even performs pretty well on the steam deck.
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.