Having a fullscreen mode that hides both the titlebar and taskbar on Windows and Linux would be nice to have.
document.documentElement.requestFullscreen();, and can then easily be disabled again by pressing
Having a built-in option with a menu-item and a keyboard shortcut would be preferred over this workaround. Since this shortcut can't be
F11 as that is already used for toggling the sidebar,
Ctrl+Shift+F might be used instead.
I found an older request asking for the same feature, but it was locked shortly after the discussion went off-topic.