We want to provide owners of their site, administrator role, but we don’t want them to delete user 1. We also don’t want a cheap solution which stops their admin account from being able to delete users in general, they need full user permissions to add/edit/delete users, just not the user 1 account or a role above them.
In Drupal there is a module called: “Protect user 1” which allows creation of multiple admin accounts, but none of them can edit/delete user 1. Does the WP ecosystem have anything like this?
Read more here:: WordPress roles – Protect administrator role