Long ago, when I was a teenager. I really want to go back because I have heard that, too. I heard kind of similar things about Zurich, which I've also been some time ago but only for a while. I will definitively visit both soon as I'm moving to Switzerland so it would be closer than from where I am now.
Well, you're right. I was comparing to places as clean, calm and safe as Munich. I only found that kind of peace in much smaller cities that were way less vibrant. I understand (and agree) with your second paragraph, but from all the "too rich and developed" places I've been, this is the most vibrant.
Except for housing, I did not find it particularly expensive. I ate out at very nice places for less than 10€ a lot of times, ice creams were amazing and cheap, too. At least compared to Spain, I did not noticed a big difference, taking into account the wealth of the city.
What I still wonder is whether using LLMs is helpful in some ways, or it is, as other users say, just useful for man-made problems such as corporate communication or bureaucracy. I use it for coding and it makes me confident to tackle new things.
I try to use it to understand the code or to implement changes I am not familiar with, but I tend to overuse them a lot. Would it be better, if used ideally (i.e. only to help learning and guiding), to just try it harder before using this or using a search engine? I wonder what's the most optimal use of LLMs in the long run.