How to hide the comment subject field?

Question

In Drupal 7, there used to be a checkbox: "Allow comment title". Unchecking that, and there was no comment title.

I am unable to locate a similar setting in Drupal 9.

I've found: How to remove or hide the Subject field for comments?

It explains how to auto-generate the subject field for a comment. This is not what I am asking. I don't want to display any subject field when showing a comment. If you're familiar with how comments work in issues posted on Drupal.org, that is the solution I am looking for.

Edit: In comments, it is suggested that you can do this by navigating to the "Manage display" tab for the comment type. However, this is a screen dump (Drupal 9.4.8) of that tab for the default comment type:

I see no obvious way to set the title not to be shown.

Answer 1

A solution is to copy core's comment.html.twig and put it in your theme's /templates folder and remove the <h3{{ title_attributes }}>{{ title }}</h3> line.

Answer 2

If one installs the contributed extension named Manage display the "Subject" field becomes exposed under the "Manage display" tab for a comment. You can then move it to the "Disabled" section to hide it.