It seems like you have a Wireless WAN. Since the client (WWAN) WiFi has to come up first, the LAN SSID cannot come online.
Try the Travelmate package, as @Willy suggested.
- Also, be advised that Wireguard uses randomness to establish enough entropy to raise the connection. That randomness is provided by WiFi noise in most Atheros devices (especially those without a built-in Random Number Generator). So if your WiFi is down, those random numbers are never picked from the air, and your WG interface takes more time to raise.