Is your feature request related to a problem? Please describe.
The Category and Category Heading tags do not return Group Name or Group ID.
https://docs.expressionengine.com/latest/channels/categories.html#variables
https://docs.expressionengine.com/latest/channels/category-heading.html#variables

Describe the solution you'd like
I'd like them to.
{exp:channel:categories} {category_group_name} / {category_group_id}: {category_name} {/exp:channel:categories}

Describe alternatives you've considered
Seems like the alternative is to continue to suffer in silence.

Teachability, Documentation, Adoption, Migration Strategy
This will have no effect on current sites, require very little change in documentation, have virtually no risk of complications, and will be helpful to a very small number of grateful people Edit: changed from group_name and group_id because of possible variable name collisions

• I am capable and would like to work on implementation of this feature if it is considered.