While not true 100% of the time (e.g., System Preferences for one), the red button only closes the window and leaves the application running. This could account for the viewer showing up when you moved to a fresh page. True, "Hide Keyboard Viewer" doesn't seem to imply "quitting", but…


On a Mac since 1984.
Currently: 24" M1 iMac, M2 Pro Mac mini with 27" BenQ monitor, M2 Macbook Air, MacOS 14.x; iPhones, iPods (yes, still) and iPads.