Had same problem. I'm using an Intel Wi-Fi AC 9462. On Monterey, there are some changes had to be done.
Make sure IntelBluetoothFirmware.kext v1.1.3 or newer is used.
Exclude the injection of IntelBluetoothInjector.kext for macOS Monterey from the Bootloader's config
Include BlueToolFixup.kext from acidanthera/BrcmPatchRAM (https://github.com/acidanthera/BrcmPatchRAM)
More info at: https://openintelwireless.github.io/IntelBluetoothFirmware/FAQ.html#what-does-this-kext-do
Z490 UD AC
i9 10900KF Cofee Lake 10-Core
AMD Radeon RX 5500 XT 8Gb
Wi-Fi & Bluetooth working
