[`SDL3MobileWindow` always forces the window to be fullscreen](https://github.com/ppy/osu-framework/blob/e7f3343f3022dd32f2c8264e7cc421bf5414a4b0/osu.Framework/Platform/SDL3/SDL3MobileWindow.cs#L18), hiding the status and navigation regardless of `WindowMode` settings. This is fine for games, but having the option to change this behaviour would be nice.