Automatic phishing detection rolled out in July
https://www.bleepingcomputer.com/news/security/microsoft-forms-now-automatically-blocks-confirmed-phishing/
Microsoft is rolling out automatic blocking for repeated Microsoft Forms phishing attempts to boost the product's security by stopping attackers from abusing forms and surveys to harvest sensitive data from their targets.
Microsoft Forms is a part of the Office 365 cloud-based subscription service and it is designed to enable its users to create surveys, polls, and quizzes for collecting feedback and data online.