Everybody has a test environment, it's rare to also have a production environment.

Your statement doesn't match up at all with what they said nor even make sense. What's the point of a business if you only have a test environment but rarely have a production environment?

You seem to be assuming to know what their development process and infrastructure is like.

The joke is that if you don't have a testing environment, production is your testing environment, which in effect means that you don't have a production environment.

Sorry, cannot describe infrastructure (not a throwaway account).

Prod and Test are out of sync in terms of mission critical software, Test is not powerful enough to handle Prod's tasks, and there is no formal procedure to use Test for testing. So Test is never actually used.

When a bug is found in Prod, it's fixed on Prod, while it's live.

By fix, of course I mean an iteration on and combinations of:

qc: we found bug

dev: it's not a bug

qc: it is a bug: [insert evidence]

dev: it's fixed now

qc: no it's not

dev: how about now?

qc: no

dev: and now?

qc: yes but now this other thing is broken

dev: here's another attempt, please check again

qc: Prod is down

dev: try it now

qc: it's still broken, along with the other broken part, and now these three other parts are broken too

ceo: it's fine, close this ticket