I don’t personally have the devices to support it, but a new AppleTV could be the next buy I make and would love to try these on that. Love playing games on the ATV.
Controller support is key for the iPhone/iPad IMO. Being able to output to HDMI @4k/60 means you can move from portable to “docked”, which makes the iPhone potentially the best platform for gaming - I wish Nintendo would add controller support for their games. I use DualShock 4s but I know people use joycons, backbones and other controller “cases”.