A "full" live view isn't just about screen size; it’s about maximizing the relevance of the data shown.
Many Axis network cameras use the AXIS Media Control (AMC) toolbar. Clicking the View Full Screen button causes the video image to fill the entire screen area, hiding all other windows. To exit, simply press the Esc key on your keyboard.
To get a truly complete view of a scene, Axis provides integrated tools beyond standard video: AXIS Camera Station Pro - User manual
In most Axis interfaces, there are direct ways to expand your field of vision to occupy the entire monitor: