File list of package libgfortran-8-dev in buster of architecture arm64
/usr/lib/gcc/aarch64-linux-gnu/8/libcaf_single.a /usr/lib/gcc/aarch64-linux-gnu/8/libgfortran.a /usr/lib/gcc/aarch64-linux-gnu/8/libgfortran.so /usr/share/doc/libgfortran-8-dev
/usr/lib/gcc/aarch64-linux-gnu/8/libcaf_single.a /usr/lib/gcc/aarch64-linux-gnu/8/libgfortran.a /usr/lib/gcc/aarch64-linux-gnu/8/libgfortran.so /usr/share/doc/libgfortran-8-dev