I just checked on my 2021 Traverse Premiere and it does not have wireless CarPlay. If you press the Carplay button on the infotainment screen, it says "Connect Apple CarPlay Phone to USB. Plug in supported phone to launch Apple CarPlay." To be fair, even though some online videos give the indication of wireless CarPlay, the 2021 manual doesn't mention it (see page 164). I guess we can hope that we'll get it later with a firmware update.
P.S. -When I was shopping around, some online videos also show a more modern dash with a large center screen that includes the speedometer. But in reality, that didn't happen either, at least for the Traverse. it looks the GMC Acadia got it though: