Huh? What's the other "quicksort" ? Tony's famous Quicksort I'm aware of, and while you should not use this algorithm this century† in its pure form it's still in the core of good sorts, you just need other ingredients too.

So what's the diametrically opposed algorithms with the same name ?

† Don't tell C++ programmers, some of their standard libraries only stopped shipping quicksort as the default algorithm during the Biden administration.