Integrate Google Analytics' User ID function with WordPress site

I need to integrate the user ID function with my wordpress site. Been looking for a dedicated plugin but closest thing I could find was https://en-gb.wordpress.org/plugins/google-analytics-adder/ but when the plugin’s author has written the best review, it made me a little skeptical.

See: https://support.google.com/analytics/answer/3123662?hl=en

Currently have GA installed and running fine currently, but not this user ID function. So I can’t identify registered users interactions.

Not sure if wordpress is natively/easily able to “send the unique IDs generated by your own authentication system to Analytics as values for the User ID”.

Any help appreciated, sorry if silly question!