Proxmox has a web ui that you get to by typing in the internal ip address of the server after it’s set up followed by :8006 I’m pretty sure. Not quite understanding what you’re asking?
#wifi linux terminal
humble pewter
echo cedar
you can use ifw or what would be easier using nm-tui. There's a guide on the arch wiki as well: https://wiki.archlinux.org/title/Network_configuration/Wireless