How did you work there for 13 years and not realize that Microsoft “PM” was neither product nor project, but “Program”?
It was a hybrid role that every org did differently, and it was confusing to everyone and made it hard to separate product focus from execution focus.
Last year they split the roles into Product Manager and Technical Program Manager (TPM), and PM’s had to elect which role/title/path to choose.
This is at least true for the Experiences and Devices and Cloud and AI orgs.
Source: work there now, have been there 6 years.