One thing you might want to check is if the apps are installed correctly and if they have the necessary permissions to show up in that folder. Sometimes, apps might not appear if they weren't installed correctly or if there are permission issues. Have you tried restarting your computer or reinstalling Metatrader 5 to see if that resolves the issue? Those are usually areasonable first steps. Also, checking your system's permissions settings for the Library folder might help.