I have Asus TUF Gaming that I bought last Spring and I didn't have any issue with WiFi not until the Windows 11 update last summer.
I saw your solution this afternoon and gave it a try but it didn't fixed the issue. It works for a while, and then it didn't.
I have this D-Link WiFi dongle/adapter I bought several years ago and supports 802.11 ac for both 2.4 and 5G, I guess this is my ultimate solution for now until Microsoft or ASUS fixed this issue. I never have any issue with WiFi eversince. I disabled Mediatek MT7921 and plugged the dongle in the USB drive.
This is a hassle, specially to my wife who in her online class now. She once almost failed in one of her class because the internet was lost in the middle of her timed online exam.