I'm trying to make a service to archive a folder using tgz. I can't get this to work

The following services are installed by Entropy:

• Archive as 7z
• Archive as rar
• Archive as tbz
• Archive as tgz
• Archive as zip

Setting ⇧⌃⌘A on the Archive as tgz service does create a .tgz file in Finder; however, I first had to trigger it from the Services menu in Finder before the keyboard shortcut worked. This is also where I found the Entropy icon on these services.

Note: I had to add ⇧ to ⌃⌘A because in macOS Catalina ⌃⌘A is: Make Alias

I also did not have these services on a clean built macOS Catalina system until after installing Entropy, without even running it first, these services appeared in: System Preferences > Keyboard > Shortcuts > Services