Right click the Mint icon on the lower left of the desktop and select “Configure…”. Select Menu Editor and from there you can add apps and icons as customized as you like.
Try this… https://forums.linuxmint.com/viewtopic.php?t=327864
I made it that far, but I was moving apps around into different folders I made two of them lose their icon and listing on the menu. They can only be activated now using the CLI.