Wifi Not Working

Hello, welcome to EndeavourOS community.

First up check whether the WiFi driver is detected or not by :
lspci -k or lsusb -v command, depending on if the card is connected by PCI(e) or USB.

If your driver is mentioned, then check output of the ip link command to see if a wireless interface was created.
The output of this command should begin with “w”.
Now run
ip link set your_interface up.