The American growth at all costs mindset (particularly quarterly) is excellent during the technology exploration phase. It spurs radical innovation, but as a technology matures it becomes impossible to meet growth expectations. In response to this the spiral of Enshittification kicks off and eventually the company and it's products fade into irrelevance. Stability in such an environment is impossible (the gain knob is cranked to the max).
The German Mittelstand are different, typically they are much slower to innovate during the technology exploration phase (I think mostly due to the German economy not really rewarding early stage innovation). However as a technology matures the Mittelstand's strength in stable, gradual evolution and refinement really shines. They focus on being the best in their niche and grow by expanding to new markets, opening adjacent product lines etc. Enshittification is the last thing on their minds (the system is critically/over damped).