By using a combination of web hooks on your feature service and a flow in power automate, you can send an email to the user based on the attributes of the collected feature (Only ArcGIS Online hosted feature services offers support for this operation).
You can also accomplish this with other platforms as well including Python. It takes a bit of setup, but is not that difficult to implement using standard Windows tools and utilities. It will all depend on what licenses you have available to you (Microsoft 365 and AGOL) and comfort level of language/coding effort.
