Office 365 missing from User selection dropdown

[macropod]

I'm not in favour of that as the single-install version that corresponds with Office 365 varies over time and discussions in posts that related to, say, the Office 2013 equivalent of Office 365 may not be relevant to the 2016 or 2019 equivalents. Moreover, if we have an Office 365 selection and, as may be expected, new features are added, we're just as liable to end up with having some 'clever' person resurrect an old thread to opine that a recently-introduced feature was always the way to solve some Office 365 problem that existed 5 or more years ago but no longer exists.

Granted, for those using Office 365, it's perhaps inconvenient to have to update their profile every 3 years or so, but at least it's then transparent which single-install version best approximates the user's Office 365 installation at a given point in time.