Have a hard time with this list, seems like it is put together based on paper specs and price comparison, not actual experience.
On the Intel side, it's well known by enthusiasts at this point that ASRock and Gigabyte lost the motherboard war on Alder Lake. ASRock with bad VRM design on all but the highest end boards, Gigabyte with DDR5 issues and buggy BIOS. MSI and Asus "won" this round, yet you have a Gigabyte as #1 for Z690.
You can see this on motherboard prices as of Sep 2022. Discounts are normal at this point, but ASRock and Gigabyte are dirt cheap, with things like the Aorus Elite AX for $199 down from $289 MSRP, and you can get ASRock Z690s for ~$150.
Meanwhile an Asus Z690-Prime TUF is $279, down from $289, and the MSI Z690-A Pro Wifi - MSI's low end Z690 - is $215, down from $239.
In other words, MSI and Asus have the best Z690 motherboards. Enough people know this now that the level of discount is reflecting it. This is another garbage list from Tom's.