gtk-fortran 4.4 released: it provides Fortran interfaces to GTK 4.10 and GLib 2.76. It has been tested on Linux Ubuntu (with GFortran and Intel ifx compilers) and Fedora, MSYS2/Windows 10, macOS and FreeBSD.
https://github.com/vmagnin/gtk-fortran/wiki
Remark: options have been added to facilitate the use of the cfwrapper Python script with other C libraries (see https://github.com/vmagnin/gtk-fortran/wiki/How-to-hack-the-cfwrapper).