8 – How to modify the permissions of a type of comments?

On my Drupal 9 site, I created 2 types of comments:

  • comment_type_a
  • comment_type_b

When I go for permissions, there are only permissions for all comments in general.

How to modify the permissions of a type of comments ?

I want for comment_type_a only admin role can comment.

I want for comment_type_b all roles to be able to comment.