Actually the guideline for what you can do when you are on sick leave is really great here in Germany: do whatever makes you get well.
Meaning if I have a cold I might go to a nice spa, if I am depressed a concert or a festival would definitely be in order.
The idea of mental illness is another thing employers need to get in their brains first.
I’d consider getting one if that was something my employer did.
Let me introduce You to these spent uranium fuel rods.