I want to add a custom field in the wordpress custom post type, such that this field dynamically fetches the value of the author role.

Purpose –

I want to add this custom field so that I can filter custom post types based on the user role of the author of the posts, that is editor, subscriber, etc.

What have I tried?

Well, I looked up the solution on Internet but couldn’t find one and I am not that great in PHP so couldn’t give it a shot myself.

Kindly suggest a solution.

Thanks a lot, in advance.