I work for a relatively small company (about 15-20 odd people) and we've got a server rack in the office. It's positioned in a very specific angle (with tape on the floor) along an AC unit because of cooling, but we self-host a lot of our stuff.

It's done on a budget as well so we're kinda forced to use open source software.

Weirdly enough we use Skype for work chat and Zoom for video meetings, so it feels a bit inconsistent.