It’s most likely in email, occasionally in messages, but rarely in person — unless the miscreant is completely shameless.

Photo by Andrea Piacquadio on Pexels
The modern dysfunctional corporate workplace is awash with everything from condescending messages affixed to noticeboards, toilet doors, and monitor screens¹ to ambiguously offensive emails, messages, and HR droid PowerPoints².
The prose contained therein is something of a work of art and it’s sometimes really quite hard to decide whether or not it’s done on purpose for, as we all know, true passive-aggressive wording is an art form cultivated by the truly cynical, damaged, progressive engineer who has spent way too much time in the Grand Game of Software Engineering.
*cough*
<looks down at the keyboard>
Moving on, I suspect that the purveyors of such prose come from one of the following three broad groups: