I'm getting 1.4Gb WIRED from my XB8 using a M1 MacBook Pro and a USB-C to RJ45 adapter to the 2.5Gb port on the XB8. (I pay for 1.2Gb from Xfinity). 2 feet away on WiFi I only get 800Mb. The M1 MacBook doesn't support WiFi 6E so I went to the apple store and bought am M2 MacBook Pro which does support WiFi 6E. I got the same exact results with both machines. I returned the M2 MacBook to the Apple Store.
The XB8 SAYS the 6GHz is ENABLED. Is there something else I've got to do to get the Tri out of this Tri-Band Modem? Just ordered a iPhone 15 Pro Max to add to my WiFi 6E compatible devices.