MCUXpresso IDE ships GCC 12.2, which has good support for C++20.
However, the "Language standard" dropdown in Project settings -> C/C++ Build -> Settings -> MCU C++ Compiler -> Dialect has no option for C++ 20.
There is a workaround, to simply add `-std=c++20` or `-std=gnu++20` in the "Other dialect flags" text field, but it would be nice to see it in the dropdown.
