What kind of company is that? The cost of a 4k display (and 400 Euro is pretty much bottom of the barrel when it comes to good displays) is a fraction of the yearly salary of an employee, lasts many years, and a good screen can help reducing eyesight problems. It always surprises me that companies apply austerity to weird things, like providing a setup that keeps employees healthy, while probably throwing a lot of money at irrelevant stuff.

You'd be surprised how accounting works at some companies. I've seen companies buying 10k euro civil engineering software to run on 1k euro computers that could barely handle it, and refusing to also pay to upgrade the computers.

Well you know, Germans are ruthless optimizers. They just tend to optimize for the wrong objective functions, and the wrong constraints. Also the wrong time frames.