Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Dear Cecilie Lodberg Bosse,
Greetings! Thank you for posting to Microsoft Community. We are happy to help you.
I want to assure you that Anonymous form is truly anonymous. There is no way Microsoft Forms can store the IP Addresses of the respondents. The Form is just anonymous as the word says.
If you go to check the form settings > Who can fill out this form, you will find that there is no Record name option for the Anonymous link type(Anyone can respond), so it neither records the username nor the IP Address. Microsoft Forms have no that kind of functionality:
Thank you for kind understanding and cooperation. I hope the above helps! I wish you Good luck and stay safe!
Sincerely,
Edwine | Microsoft Community Moderator