Your #1 best bet for this would be to simply create an automation with the trigger “when a form is submitted”. Then, you can have an email sent to whomever you want with whatever text you want to appear in the email.
If you try to use that little email toggle at the bottom of the form, Airtable has made that unnecessarily complex & confusing & impossible to audit. Each individual controls their own toggle for each form, so if person A wants to receive an email for that form, they would need to log into Airtable, navigate to that form view, and toggle it on for themselves. It’s pretty ridiculous.