Currently, not all service projects are shown on the help center even if the customer has permission to access/view them. A plain hyperlink Explore all is shown below the tiles that can be overlooked.

The suggestion is to,

• Make the Explore all link more prominent, like a bit bigger in a colored box or border, until the ability to show all service projects becomes available.
• Provide the project administrator the ability to show all service projects on the help center.