wp_mo_openid_linked_user

No. That looks like it’s from a plugin that does some social login or login related feature.

Ok, thank you

Why do I find on this link (https://plugintests.com/plugins/wporg/mailoptin/1.1.4.0) that the database comes from your plugin?

These are the database tables we create https://prnt.sc/u2q9h4