I mean a leak isn't an issue as far as equipment damage, which is the general concern with "water cooling" leaking. These specialized fluids are non-conductive

I mean a leak isn't an issue as far as equipment damage, which is the general concern with "water cooling" leaking. These specialized fluids are non-conductive. In most of the facilities I've been in that used these special fluids they had specially designed floors that acted as drains and capture in case any leaks occurred or for incidental spillage as part of replacing components in immersion cooled systems. All of the technicians were properly trained for safe handling, and of course these fluids are not something you want to be exposed to without the proper PPE. How they were plumbed and contained, a leak would not result in direct contact of the fluid to a person, nor would it result in it escaping to the environment outside the containment area.