He got the Aorus Master, which is working rock solid but still says he prefers the look of the ROG board and may change
Tell him he should probably stick with the Master and stay with bios F10 as F11c will reduce performance. The ROG XI is a weird motherboard. I initially thought it was better as it was faster and I only needed 1.26v for 5.3Ghz whereas I had to use 1.30v on the Master.
It turned out that the performance difference was down to me using the latest Gigabyte bios and rolling back to the previous one they had the same scores. Also more importantly, even though I was using less voltage the CPU temperature was sometimes 10c higher with the Asus. I tested this repeated times and it was the same each time. This is probably down to the VRM's.
My experience seems to backup the videos I've seen on the Z390 ROG XI's by Buildzoid et al
My boy has taken the ROG XI board as it does look nicer. The M.2 location is also better for me.