Tired of lagging because Trackmania decided to reboot in Windowed mode instead of FullScreen mode ? This plugin helps you to automatically switch to FullScreen when booting the game. If you prefer, the plugin can also just warn you instead. It only works on startup (because everything done in-game is done by you).

If you want a plugin that forces display during gameplay, you can use this plugin https://openplanet.dev/plugin/forcedisplaymode