Question about Microsoft Office 2016 Home and Student

This version is only valid "For 1 Mac", as noted on the packaging. Important: the package itself does not contain a disc, as one might assume (and as I had assumed), but only a licence key that allows the download and activation. However, this all worked without any problems. However, you have to open a Microsoft account for this purpose. The personal details required are absolutely minimal.

Yes, this version is only for 1 Mac. With the version Microsoft Office 365 Home (DE, Mac OS X, Windows) you can install Office on 5 devices. However, this is a subscription model and must be renewed annually.