A web-based tool in Microsoft 365 that enables users to quickly create surveys, quizzes, polls, and feedback forms.
Dear Anna Maria Koniari,
Good day! Thank you for posting to Microsoft Community. We are happy to help you.
Per the description, I would like to summarize your concern i.e., you want to restore a form which a created in an user account and the user account is deleted for more than 30 days.
If my understanding is correct, I would like to let you know that once the user is deleted from the organization, the user will be deleted permanently from the organization after 30 days and all data related to his account (apart from SharePoint Online and user OneDrive data of the retention set more than 30 days) will be deleted permanently and can't be restored.
In this situation, we are sorry to convey that the data from Microsoft Forms can't be retrieved if the user is deleted permanently.
Thanks for your cooperation.
Sincerely,
Mia | Microsoft Community Moderator