Because in favor of "DTS:X Ultra," which many gamers hate. The 2021 driver version is considered the "vintage" version that actually allowed custom EQ bands.
https://www.asus.com/supportonly/[YOUR_MODEL_NAME]/HelpDesk_Download/ Audio Wizard Asus Download Windows 11 2021
If you own an ASUS laptop or motherboard, the phrase is intimately familiar. For users who upgraded to Microsoft’s sleek new operating system, Windows 11, in late 2021, a common problem emerged: Where is my Audio Wizard? And why is my surround sound broken? Because in favor of "DTS:X Ultra," which many gamers hate