@grimalkina Hahahaha. Totally fair.
Okay, so Calibri has been the default "business" font in MS Office for almost 20 years now, designed to replace Arial for new high-density displays and better kerning.
To overgeneralize, many businesses will use Calibri because it is bland and inoffensive, and the opposite of eye-catching: it just sort of fades into the background. [1] Thus, it's great (sarcasm) to use for all kinds of corporate proclamations which come "down from above" without any human names attached.
Computer Modern is the font you see on most research papers, because it's the default for LaTeX, which is like Word but for people who need lots of equations everywhere. If used for corp docs, it might signal comfortable familiarity to other researchers, but would probably put everyone else on alert.
Once, you could make the point that Calibri was used because it was "installed everywhere", but modern IT device management makes font distribution trivial, so this isn't a driver anymore.