The problem is they have been so awesome for decades that even slight bit of discomfort sounds like agony to them, while people who had worse inflation even on their best year, are facing something that is acceptable to them because they grew accustomed to it.
I am not a German (not living there either) but since I have close family members there and visiting them few times per year, I met my share of Germans and I have to say that they are mostly financially responsible and hardworking people. So when you are living in one of the most developed countries in the world, having a well paid job and tend to save the money (and Germans do like to save) when/if shit hits the fan you will adjust much easier than someone already barely surviving on his salary and without safety cushion.
But you are right about something though, people in countries like Russia are used to shitty standard of living and its beyond me how country with such natural resources can have lower standard of living than some of the poorest EU countries (for example Croatia where I am from), and people there being ok with it.
Some experts attribute the low standard of living in Russia to its vast territory.
Such a huge territory with a very harsh climate is very difficult to manage. To resolve all issues of logistics and energy supply, a strong centralized authority is needed.
However, such power very quickly degenerates into autocracy and tyranny. China has similar problems. China is not a very large country in terms of its territory, but a very large and difficult country to manage in terms of the number of inhabitants.
In totalitarian countries, the standard of living is always lower than in democratic countries. In this sense, Germany is in a very advantageous position. The territory of Germany is large in area, but small enough to successfully solve all logistical issues. German citizens are disciplined, intelligent and educated people.
In addition, the inhabitants of Germany are vaccinated against the ideas of fascism.