Thanks to David Dev
I have the same problem with ASUS ROG STRIX G15 2022.
Wifi card suddenly packs up. Bluetooth vanishes and wifi does not find any networks.
I suspect it has something to do with sleep and/or PCIe driver as well.
Reboot / soft network reset helped to reconnect the first few times but stopped working later.
Hard reset with 60s power button press works. But the issue recurs every week or so.
Disabling the power management option didn't help.
So I have to repeat the 60s reset every time and re-enter wifi passwords. Bluetooth pairings are not wiped out thankfully.
Replacing wifi card with an intel one might be the only permanent solution.
Update April 2023:
System auto updated wifi driver to 3.3.2.771 and since then wifi has been stable.
It also connects to 5GHz network which it would not always do earlier.
The issue seems to be fully resolved for now.