The toxic culture is coming from the outside. They have no reason to trust you, because dozens of corporations institute wellness programs and talk about caring while still punishing people who take time off. Plus, some of them have just internalized the idea that they should just work through it.

One thing I have heard can help is if the boss takes time off, so since you have some authority, maybe make a point of taking your own time off and telling them when you do?

I mean, maybe, but when you are in fear for your life, you may not be able to make that rational calculation.

In Germany? I was under the impression that Germany had much better public transport than we have in the States.

I live in Wisconsin, in the United States.

I mean, if you live in a flat without your own parking space, I'd expect you're taking public transportation most of the time. If you don't own a car in the first place, there's no need to convert you in the first place, at least if you have no reason to need a car.