Hey @RL3 .
I was just about to send a reply when you sent the last message; glad you got it resolved. The "chrome://system" interface I listed is a good place to know in case you need detailed information about your Chromebook in the future.
As far as different cards being in the same model, it is quite common with Chromebooks, Windows devices, and Macs. The different configurations allow for more options and upsells. Asus's top end of the CX5601 has an i7, 12th Gen and better hardware than the lower priced ones. Dealers like Best Buy usually carry the lower priced models of Chromebooks so you can sometimes get less than what you saw on the manufacturer's site. Luckily it worked out for you.
And to answer your question, Wifi 6 does not have the 6GHz band. That was part of the 6E standard that extended (what the "E" stands for) the Wifi 6 standard. The biggest differences are less latency, faster speeds, less interference and shorter ranges.
I can't say what happened to delay the CX5601 from connecting previously to the 6GHz band. In general, a device will connect to the strongest, least crowded, and fastest band so there are a lot of factors that could have been at play. Personally, I wouldn't get too hung up on the Wifi 6 vs. 6E. Over Wifi 5, I would recommend 6 or 6E due to increased security with WPA3 but unless you have a lot of congestion in or around your home with a lot of 6GHz capable devices, you are not going to see much if any difference in 6 vs. 6E. Most routers, including the Google/Nest lines, do a great job of managing the channels and connections that you typically always will get great performance.
Let us know if you need any further assistance. We'll get the thread locked/closed.
