If you're using Office apps installed from the Microsoft Store, you'll want to switch to the other type sooner than later.

With this one-time payment, full app access to essential Microsoft Office apps, including Word, Excel, PowerPoint, Outlook, ...

Office apps will launch at startup in a paused state, shortening the wait time when you first want to access them.

To resolve the 'Word cannot open the existing file (Normal.dotm)' error, reset the Normal.dotm file, use Open and Repair, and ...