I am a regular user of the TTN map webpage and often display the map as large as possible to show individuals the number of gateway in the local area. I do understand that the map is setup using Leaflet, which has multiple plugins available that allow you to add a fullscreen button:
Hey mate, I agree it would be great, for the interim you can try my map also https://www.meeta.co/ttn-gateway-map/ it has full screen option, also location search and a few other extras I gathered from the data, data is automatically updated every night.
Hello Adam and Lachlan and many thanks for your posts!
Actually, I was looking exactly for the same fullscreen option and, since the linked page is no longer working, I started a browser inspection of the TTN homepage. Finally, I figured out the TTN map section and the magic link to open it in fullscreen mode: https://www.thethingsnetwork.org/gateway-map
Moreover, to zoom in and out you can double click and shift+double click (not always working) respectively. Enjoy!!