Plugin alerts, but no Wordfence installed

Please see:

Plugin and themes auto-updates

To disable the emails, you want to disable the auto update feature for each plugin or theme with it enabled, but then make sure to regularly visit your site to keeps things up to date manually.

If you wanted to keep the auto-update future turned ON, but simply disable the email notifications, the article below will help you do just that either using a plugin or custom code.

https://www.wpbeginner.com/wp-tutorials/how-to-disable-automatic-update-email-notification-in-wordpress/

Hi, Sorry just remembered I did not thank you for the solution.
Much appreciated.
Regards
Drachsi