yes the webui now has some convenience options for generating and importing configs, but there's still a gap (as in default package installed) in client profile management or network management on cli.

What pivpn (and similar tooling wrapping lower level commands) bring along is this client management and even some network topology/routing management : https://docs.pivpn.io/wireguard/ and https://github.com/pivpn/pivpn/tree/master/scripts/wireguard

I think it's a interesting spectrum between wg-cli and tailscale.

OpenWRT on a BananaPI R2 with WG wirks like a charm for ~ 2 years now