https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119059
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> --- You are using a compiler which doesn't support the whole C++26 (which isn't ratified yet either), the support is documented to be experimental too. You just have to live with limitations like that, the P3074R7 change is definitely not going to be backported to GCC 16.[345], it is a new feature.
