Disable Admin Email: New User Registration

See if this can points you in the right direction:
https://www.wpbeginner.com/plugins/how-to-disable-new-user-notifications-in-wordpress/

Thanks t-p. I was made aware of this plugin but I was hoping to find a way to achieve the same thing but with code.

Are you aware of any way to do this or a place I could find how to do it?

Thanks for your time and for guiding me towards a very viable solution.