Drupal 10 compatible release?

Fully support. This is a simple but very useful feature. Would be great to have it for Drupal 10.

Just implemented a similar functionality in a custom module. Happy to share (see 2 files attached).

You should avoid using jQuery, as Drupal Core is working to remove it.

@solideogloria,

Any alternative suggestions? The possibility to reference/link comments and their parents is a must for any site using comments extensively.

Use Vanilla JavaScript. For sessions, see these pages:

https://drupal.stackexchange.com/questions/278686/what-is-the-difference...

https://api.drupal.org/api/drupal/core%21core.api.php/group/session/11.x