Has anyone had any luck with Google Analytics 4 on Backdrop sites yet?

I know that some work has been done on the development branch of the Google Analytics module, but I can't get it working and am wondering if anyone else has had any success that they can share. 

https://github.com/backdrop-contrib/googleanalytics/issues/23

Comments

If the Google Analytics module is not working, has anyone found an alternative method (other than directly editing the page template) for inserting a tracking code. 

In Drupal 7, this module might work. 

https://www.drupal.org/project/tracking_code

I can't find anything like this for Backdrop yet. Anyone else?