@daedalus Don't attribute to malice what can be explained by API limitations. It is far more likely that Microsoft isn't privileging their own app and isn't giving it any special access to Windows APIs that a third-party developer wouldn't have (which is a good thing). As a consequence, the app is just as unable to access "protected" content as any other third-party app. Look at Zoom, TeamViewer, or any other piece of remote access, teleconferencing, MDM or parental control software, and you will find the same limitation, regardless of which platform the software is running on. Notably, this also applies to open source software running on open operating systems.

Not giving this app access to DRMed content was just an easy technical decision to make.