Make a .conf file under /etc/modprobe.d/
sudo nano /etc/modprobe.d/99-disable-aspm-rtw-pci.conf
Insert the following two lines:
options rtw_pci disable_aspm=1
options rtw88_pci disable_aspm=1
Save and reboot.
Apparently, this is a common issue with those Realtek WiFi chipsets. The two lines will cover the built-in module as well as the one from the AUR (which you are using.)
This will, however, likely use up more of your laptop’s battery as it disables advanced power management of your WiFi.
EDIT: If it doesn’t work using the driver from the AUR, try again with the one included with the kernel. (Either blacklist or remove the AUR version to retry with the built-in version.)
The built-in module is named rtw88_8821ce (notice the extra “88” immediately after the “rtw”)