I find that Microsoft Forms is becoming a very versatile tool and just a little bit here and there would put the icing on the cake. I find it a bit rigid hence it is important to add as many features as possible.
One feature i think would be good to add is a validator for mobile phone number and email. Now, what this would do is once phone is selected, it allows country code to be entered as well as the mobile number, the form builder should also by default be able to restrict the country code, select a default one as well while the mobile number should be the recommended length.
The email on the other hand should only be a specific format, "*@*.*" or a ping should be integrated so that invalid email addresses can be flagged and bounced ab-inito.
This tiny request for feature add has been from the pains I have experienced 🙂