Currently, Jira cloud has this Action Items in Jira feature available

With this we can do the following in Description field:

What Are Action Items?

Action Items are lightweight, checklist-style tasks embedded directly within your Jira issues. With this functionality, you’ll be able to create and manage smaller tasks in a more intuitive and less formal way. They’ll live within the description, comment, and other rich text fields.

How it works

• Users can create an Action item by “/ action Item” in any rich text field (description, comment)

• Users can create an Action item by “ [ ]”

• Action items are present in the description and comment fields

As this is already available for Cloud, please make it available for Datacenter as well