can't speak for Steam Link because I have one, but it was more headache than it was worth to get running. That said, I had my Bootcamped MBP with a XB1 control

can't speak for Steam Link because I have one, but it was more headache than it was worth to get running. That said, I had my Bootcamped MBP with a XB1 controller connected over Bluetooth and any input lag was negligible with the Assassin's Creed Odyssey Project Stream demo.