Managing personal Outlook.com account settings, security, and privacy
Hey there! Nice to meet you!
I'm sorry you are experiencing this.
Based on your description and the screenshot you provided, the hacker was able to remove the account's primary email address/security info and replace it with their own email address.
The only way to recover a hacked account is through the official Microsoft troubleshooter guide:
But since the security info has been replaced by the hacker, I'm afraid there is no other working method to recover the Microsoft account, and Microsoft Support cannot help either.
Please be advised that Microsoft Support will not be able to assist you with manual recovery, unblock, and escalation for this case, as stated in this article, that they are not permitted to send password resets, access, or even change any details on the account:
Thank you for your understanding.
Best regards,
Darhyl