Start Menu Settings
If you don’t want to show any suggested app you can disable it. It’s an advertisement. So if you want to disable it? Then go to settings and then click personalization and then click Start tab and uncheck show suggestion occasionally in start.
If you want to add File Explorer, Download, Music, Documents Folder in the Start Menu click on “Choose Which Folder Appear On Start” and then you can add File Explorer, Download, Music and Others.