Earlier this week, I got an update for the MediaTek MT7931 WLAN card in the MyASUS app. Because the card is so rare compared to the intel WLAN cards, it has been causing some connection problems before that I managed to fix. But after the update I've encountered minor issues like disconnecting from the Wi-Fi after the laptop entered the sleep mode, but the biggest concern is the lag spikes. I've tried reinstalling the drivers or reverting them back to the older version, but that only fixed some difficulties. It isn't an issue with my router or Wi-Fi connection because the lag spikes aren't a thing on my other devices (I ran the same exact test on my laptop and the other devices).
The exact laptop mode is ASUS Rog Strix G15 513QM
