Implementation difference when using std::find on a std::map between libc++ and libstdc++

I am trying to summarise to some colleagues how std::find works, and I wanted to show them how tricky can be to use it on a std::map (and why they shouldn't), so I started fiddling on compiler explorer.

I think I run into a implementation discrepancy between libc++ and libstdc++, since the following snippet compiles on the former

#include <string>
#include <map>

int main (){
  std::map<std::string, int> myMap;

  myMap["string1"] = 100;

  std::map<std::string, int>::value_type element("string1", 100);

  auto it = std::find(myMap.begin(), myMap.end(), element);
}

but fails to compile with the latter generating the following error

error: no matching function for call to 'find'
  auto it = std::find(myMap.begin(), myMap.end(), element);
            ^~~~~~~~~
/opt/compiler-explorer/gcc-9.2.0/lib/gcc/x86_64-linux-gnu/9.2.0/../../../../include/c++/9.2.0/bits/streambuf_iterator.h:373:5: note: candidate template ignored: could not match 'istreambuf_iterator' against '_Rb_tree_iterator'
    find(istreambuf_iterator<_CharT> __first,
    ^
1 error generated.

So I am puzzled and I wonder which of the two is the desired behaviour. Compiler Explorer links:

• with libc++ https://godbolt.org/z/KDsMsC
• with libstdc++ https://godbolt.org/z/g3DqlJ