Nope. Gone through Netgear, Google Wifi, and now Eero pro. All hardwired too. Input delay will always be annoying.
Steamlink is even worse. Sometimes I end up with a blank screen and it's due to some Windows error that popped up. I would need to walk over to my computer (or remote desktop in) to clear that error and try again.
I would never play multiplayer games over streaming, even when hardwired.
If youre experiencing too much input lag and are close enough, have the controller connected to your pc instead of your ios device. I use a netgear nighthawk with wifi 6, which the latest ipad pros take advantage of. Ive played SW Squadrons, forza horizon, and most recently wow with the magic keyboard with zero issues.