Hi @melissapiccone,
Thank you for reporting this interface scaling issue in the new document dialog. I appreciate you bringing it to our attention. I have also been able to reproduce this problem on my machine, and I have already reported it to the product team.
We'll have to wait for their response and resolution on this matter. Your feedback is essential in helping us improve the user experience in Adobe Illustrator. If you have any more concerns or encounter other issues, please don't hesitate to share them. Thanks again for your valuable input.
Best,
Anshul Saini