Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
There are a couple of widely reported problems with the Office apps on an Apple Mac at the moment caused by the July 13 update
1
Log into your Microsoft account on this link, what Office license/subscription do you find linked to your account there.
https://account.microsoft.com/services/
2
Please provide a screenshot of ay error you are seeing on the Office apps on your new MacBook Air.