Using New Outlook on Windows for personal email, calendar, and contact management
Dear Hollie Schreiber.
Good day.
I'm sorry to hear that you're having trouble finding the "in folder" information in the New Outlook To-Do function.
After thorough research, testing from my end, and consulting, it’s been concluded Currently, this feature is not available in the New Outlook To-Do function.
However, you can still view the folder where a flagged email is stored by right-clicking on the email and selecting "Open in a new window." This will open the email in a separate window, and you can see the folder name in the top left corner of the window. Or you can switch back to the classic outlook
We apologize if we are not able to meet your requirements; however, thank you for bringing this to our attention, we will surely raise your concerns to our Product Team and hopefully this can be included in future updates. In the meantime, please feel free to post this in our Feedback community by visiting Outlook · Community (microsoft.com) as it is a community monitored by our Product team to help improve user experience with Outlook, via feedback given by our valuable customers.
Regarding your feedback about the changes in the New Outlook, I understand that change can be difficult, but Microsoft is constantly working to improve the user experience and provide new features. If you have any specific feedback or suggestions, you can submit them through the "Feedback" button in the New Outlook. Contact support and provide feedback within the new Outlook for Windows - Microsoft Support.
For other concerns, please do not hesitate to add your post in the Microsoft Community Team. Thank you for choosing Microsoft as your partner in business.
Sincerely, Eben Ezer Tres | Microsoft Community Moderator