Check ASUS site! I found a bios update for my board, that I didn't expect, and it was to make it compatible with Win 11.
I updated the bios and know it works because on reboot, OS wanted to update to Win 11.
The Asus tools don't always find bios updates, that's why I go to support at the ASUS site.
My last two bios updates were found by going to the site.
Good Luck!