C++20 wasn't even ratified until earlier this month. I seriously doubt that most industry programmers are using it, or even have access to C++20 toolchains.
My new job is to port a company forward to C++11, FML.
My new job is to port a company forward to C++11, FML.
The claim at the top of the page is that "The ratings are based on the number of skilled engineers world-wide, courses and third party vendors." However, the details show that it really is just a single search term across a variety of search engines. Maybe they used to have an intern read the classifieds at the back of the Communications of the ACM or something.