On iPad, under the Control tab, when I double clicked the screen showing the printer printing, I got a full screen mode. That worked great. However, if I double clicked the video window using a mouse, I got a full screen mode also but the overall images dimmed under kind of transcalent blue.
Tried to use finger and no problem.
OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ... as much data as possible
Latest version 1.8.3. iPad OS 15.7