/lib/firmware/nvidia/gm204/acr/bl.bin is in linux-firmware 1.173.
This file is owned by root:root, with mode 0o777.
It is a symlink to /lib/firmware/nvidia/gm204/acr/../../gm200/acr/bl.bin
/lib/firmware/nvidia/gm204/acr/../../gm200/acr/bl.bin