All the current iPhones, SE, 11 and 11 Pro have Wi-Fi 6.Eventually, WiFi 6 and newer Bluetooth formats will show up in Apple devices, but maybe next year.
One thing I'd like is the ability to add Settings shortcuts to the home screen. We use a lot of earbuds in our family, moving from room to room, so any way to improve detection and switching, without drilling into Settings, would be helpful. Not all portals allow you to swipe down to change audio devices while you are watching- some only do subtitles and language streams. Sometimes my soundbar doesn't deactivate properly when I switch to AirPods or Beats, so I have to drill down and back out after I've started a show.
The 2020 iPad Pro has Wi-Fi 6.
So Wi-Fi 6 is on some new Apple products