I think one of the reasons that Germany are doing so well is that the economy of Germany is the largest manufacturing economy in Europe. Germany is also the most open economy amongst the G7 states, with a foreign trade quota at around 98%

Germany's rebirth as a global economic power after World War II, just shows us how fast they can recover after a crisis, so it was expected that they would bounce back first, after Covid and also the influence of the War between Russia and the Ukraine.