@tvaneven,
There might be a better way, but if you go in the Inventory and select your AP, the web portal (but not the mobile app) will show "Router" under the device name. Also, if the AP was configured as a router, the Connectivy section of the AP will show "Internet" for uplink, and will show the IP address on the Internet side. If you are in bridge mode, one sees "Local Network" under Connectivity for the uplink and you will not see an "Internet IP" address.