Google form allows you to obtain the email in a simpler way than with an input text, if you do not agree to receive news from us, we will not save your email.

If you still don't agree you can put a fake email like "noemail@mail.com".

In any case, to validate a business model it is necessary for the user to contribute something that really shows interest, to get investors to be able to say that 2000 people have left their opinion and their email to know more is much better than saying 10,000 opinions.

Thanks for the reply.