The language committee only makes it harder and more astronauty every year. How many Unreal Engine developers from 2007-2013 understand CPP20/23?
With that being said, it is (and has been) used to produce valuable software.
I was a C++ developer for a decade and knew a fair amount of the C++13 spec but never needed to use even half of it in production. I've been a Java developer for years and don't know 10% of the standard library there. That doesn't make either language poorly designed by itself.