You are seriously missing out. C++17 has worked fine for years with clang - and I wouldn't ever go back to writing sfinae code since c++20 concepts are there, i

You are seriously missing out. C++17 has worked fine for years with clang - and I wouldn't ever go back to writing sfinae code since c++20 concepts are there, it's a massive simplification; likewise for structured bindings (for(auto& [k,v] : map)), if constexpr, ...