Unixcop published a tutorial about installing Snap on Rocky Linux 8.

How to install Snap on Rocky Linux 8

 In this post, you will learn how to install Snap on Rocky Linux 8. Snap is the self-sufficient package technology developed by Canonical. As expected, it comes integrated in Ubuntu, but it is also possible to install it in other distributions like Rocky Linux. Flatpak is Snap’s natural competitor. 

How to install Snap on Rocky Linux 8 - Unix / Linux the admins Tutorials