I tried creating a shortcut called MS Games from a folder of the same name on my desktop

(it was Windows 7 Games for 10 from Winaero  works great )

https://winaero.com/blog/get-windows-7-games-for-windows-10

It is now added to the Start 10 menu and works fine 

(Screen Grab Below )

I need to point out that this is not a bug in Start10.

Start 10 merely links to whatever folders you tell it to and Microsoft removed the Games folder from the latest Windows 10.  Nothing we can do will resolve that as it no longer exists.

The folder is still offered as not everybody is on the very latest Windows 10 release.