look at this !
root@oram:~# ls -l /boot/firmware/ | grep cm5
-rwxr-xr-x 1 root root 80631 Apr 22 14:49 bcm2712-rpi-cm5-cm4io.dtb
-rwxr-xr-x 1 root root 80623 Apr 22 14:49 bcm2712-rpi-cm5-cm5io.dtb
look at this !
root@oram:~# ls -l /boot/firmware/ | grep cm5
-rwxr-xr-x 1 root root 80631 Apr 22 14:49 bcm2712-rpi-cm5-cm4io.dtb
-rwxr-xr-x 1 root root 80623 Apr 22 14:49 bcm2712-rpi-cm5-cm5io.dtb