Hello Ali A
Hi, I'm Karl and will be happy to help you today.
First, just so there is no misunderstanding, this is a public user-to-user support forum. We're users helping other users. We do not work for Microsoft and have no access to any user account so there is nothing we can do or check from within the forum. We have no input on Microsoft's policies, procedures, or design decisions.
Just to be clarify, the "new Outlook" is a replacement for the Windows 10 / 11 Mail, Calendar, People apps.
For the time being, you will able to still launch the "Mail" app (or the classic Outlook desktop app) by clicking on the applicable icon in the Windows 10 / 11 Start menu.
In terms of the "new Outlook", it is essentially "Outlook on the web" wrapped in an app framework with the added functionality of being able to add external IMAP accounts.
If you have any questions, don't hesitate to ask, we're here to help you further if needed.