Putting all side discussions aside, back to the core: Can you afford a home with a net income of 5200?
We have about that much (regular income, but it can be more due to bonuses, which are 100% dependent on target achievement, so no Christmas bonus or [..]
So it works with a 5k EUR income already - if you want to and are not looking to buy in Munich.
You are speaking here from your survivor bias. In the last 2-3 years, prices were already so high that the step over an "intermediate property" would no longer have worked. Your luck was the timing, favorable prices for the apartment, and still low interest rates and construction prices, no more. Those who are now at the respective age or life phase are out of luck.
Currently, the situation is simply completely different. And suddenly the sponsored articles no longer say: "Real estate today much cheaper to purchase than X years ago," but rather - "5200€ household income required for a 90m² condominium in every second big city."
Ultimately, this is only temporary as well - new construction is collapsing, and buying existing properties only works through price reductions. So things are heading downward to a new level that corresponds to the increased interest and energy costs. Unfortunately, the real estate market is sluggish, which is why some inheritance communities believe that grandma's little house will surely still find a buyer at 2021 prices if they just wait long enough. The realization takes 1-2 years, during which the house waits unheated for its end.