Dear eyos,
Greetings! Thank you for posting in Microsoft Community.
As per your description, the "Microsoft respects your privacy" windows keeps showing up when you chose "No, don't send optional data" in Outlook.
When testing from our side we found we can reproduce the same situation that keeping getting "Microsoft respects your privacy" window if we choose the No option.
We're afraid there is no build-in feature in Office to change this behavior. We do understand the inconvenience caused and apologize for it.
Thank you for bringing thing to our attention. We sincerely recommend you send feedback to Outlook Feedback Community. Our Product Team is in-charge of the site and they are constantly checking the comments and feedback from our customer. Many features have been developed and improved based on users' comment.
Thank you for your cooperation and understanding! Hope you keep safe and healthy always.
Sincerely,
Tina | Microsoft Community Moderator