Their government introduces more bureaucracy for companies, discouraging investments there. Berlin had a chance to take #1 spot as the tech capital of Europe post-Brexit, instead we rarely see any new unicorns coming from there.
Auto industry is another example - Volkswagen and Volvo groups are #4 and #5 when it comes to battery-only electric cars, and they're behind Tesla, BYD and SAIC (both Chinese). They're not innovators, they're still behind and I don't know if they'll catch up.
As an EU citizen I feel more and more negative about the economic future here, with UK having left and the biggest countries (Germany, France, Italy, Spain) struggling to stay relevant, especially in tech industry where AI can soon turn cause a major power shift.