@Erick Teixeira Pires All existing customers using the face API should fill the form for continued access of all the features within a year of this announcement i.e before June 30th 2023.
Existing customers have one year to apply and receive approval for continued access to the facial recognition services based on their provided use cases.
DetectwithStreamAsync method also uses an operations parameter that verifies faces and it may fail in this scenario if you plan to continue without application. I would recommend submitting the application with details of all the features that you currently use and the face API service team would review and advise further if required.
All features that are planned for retirement will not be available to all customers and if the same is passed in the request the API call will fail. I hope this helps!!
If an answer is helpful, please click on or upvote which might help other community members reading this thread.