I would like to suggesting your developer team for add more VPN protocols on new firmwares. Outline has Greate Speed and Performance like Wireguard!
PPTP is very lite for anyone like to use for low their ping time!! L2TP Also is more secure and has Stable system.
three protocol are few on a router fimrware on OpenWRT Based OS.I insist add them to next firmware. pcWRT should be most powerful