If you're stuck with these kind of issues, looking for an alternative way to retrieve those apps is more than legitimate: unfortunately, until not so long ago, finding the macOS port of most Microsoft apps was really difficult, with the constant risk of ending up downloading outdated versions from 'scary' download sites with spam-like behaviours ( Softonic and the likes) and installers full of bloatware that you might as well want to avoid. The macOS version is considered 'too old' or incompatible with the minimum requirements asked by the App Store for that specific app.The Mac on which you are working has a registered AppleID account with a forgotten password: this is another scenario where accessing the App Store can be difficult, because the password is required even to remove or replace the account if some anti-theft services (such as the 'find your mac' feature) have been activated ahead of time of your own Mac).You don't have an AppleID (and you are not willing to create one for such a trivial and once-in-a-lifetime need as downloading remote access software).

For example, you can't easily do that if: The need of downloading the MS RDP app outside the App Store is something that I personally had to achieve at leat two or three times, due to the fact that using the 'proper' channel - the App Store - might be very tricky under various circumstances. If you're in a hurry, here's the official (and 100% legitimate) Microsoft Remote Desktop macOS app direct download link, taken from the same official Microsoft page which we will discuss later: for more information about this (official) link we still recommend to keep reading.

Anydesk apple store