OK, I took a break getting my Dell Precision 5570 to see the 6GHz SSID on my Meraki MR57. I used the Dell Command Update linked above and when it was done, I had driver version 22.170.2.1 dated 8/31/2022. Unfortunately, I still can't see my 6GHz SSID unless I remove the drivers and install version 22.45.1.1 dated 3/3/2021.
The Precision 5570 does not support Wi-Fi 6E (6GHz) although Dell's advertisement contradicts this. Member Allan-D has a Precision 5470 which does support 6GHz.
So I have a 5470 at home and a 5570 at work. Brought the work laptop home this weekend just to test this and sure enough the 5570 didn't see the 6Ghz network while I type this from my 5470 connected to it. For the record both machines are almost identical, both have a i7-12700H with 16 Gb of RAM. Both list as having a "Intel Wi-Fi 6E AX211 160Mhz" card. In the "Advanced" tab of that device there is a "Channel Width for 6Ghz" on both. But the one big difference is Windows: the 5470 is Windows 11 and the 5570 is Windows 10. If I have time next weekend I'll throw another nvme into the 5570 and try Windows 11 but based on what I see thats the only thing I can think of that is different and might be the issue.
As for @DPS99 I wonder if it's the US/Canada thing also.