Maybe that's just me, but I get really annoyed by other people using (freakishly loud) mechanical keyboards in the office. It disrupts me from doing my work and some keyboards even penetrante my Bose QC ii with quiet music on...
There are also silent versions of tactile and linear switches.
Clicky switches are inappropriate in every office, and silent switches may be preferred in a particularly quiet office. Typical keyboards (Dell, Apple) fall somewhere between the tactile/linear and silent switch mechanical keyboards.
A machinal bucking spring keyboard is not that loud compared to the average open plan office.