Ways to notify the person that filled out a form, but are view-only

I am trying to set up a notification automation that will keep someone notified about the status of the form they submitted after they submit it. Hundreds of people fill out these forms, so I need a way to make it only a few automations, rather than a unique automation for each possible person. I tried setting up an automation so that the person that fills out the form is assigned as the “creator”, but that just assigned everything to me and I received all of the notifications. I believe this is because the users are “view-only” accounts. Is there another way to do this? I need a way to say “If x fills out the form, then notify x” It would also be helpful to set up another notification for “If x fills out the form, then notify y” where y is their manager. Thank you for your help!