Add a comment : Expandable link has inappropriate reading order

Issue Summary

On the "Add a comment" page, the content associated with the "This comment will be viewable by all users" expandable link does not have an appropriate reading order.

Steps to Reproduce

1. Navigate onto the above mentioned page.
2. Navigate onto the mentioned link with a screen reader and activate it.
3. Arrow down onto the expandable content from the link.
4. Note that the content associated with it is available at the main content area.

Screen-recording 

Screen Recording 2023-10-11 at 1.20.32 PM.mov

Actual Result

When the "This comment will be viewable by all users" link is expanded, the expanded listbox associated with this link is available at the end of the page for screen reader users. This is because this content is not coded directly after the link in the DOM. It is instead coded at the end of the page. This inappropriate reading order might disorient the users of screen readers. That the content is available at the end might confuse or mislead them.

Expected Results

Content must have an appropriate reading order. Assistive technologies navigate content using the order in which elements appear in the DOM. Hence, make sure that the content is programmatically ordered in such a way that it provides an appropriate reading order to the users of assistive technologies. Make sure that the listbox that gets available on expanding the link is coded directly after the expandable link in the DOM. This will create an appropriate reading order for the users of assistive technologies. For instance, this will enable them to arrow down onto the expanded content when the link is expanded.

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available

Environment

MacBook Pro (16-inch, 2021)
macOS Monterey Version 12.4
Chrome - Version 103.0.5060.134 (Official Build) (arm64)
Firefox- Version 93.0 (32-bit)
Safari- Version 15.5 (17613.2.7.1.8)
JAWS- Version 2023
NVDA- Version 2023.3
Voiceover - Version Latest