GRUB_DISABLE_OS_PROBER="false" make other os appears in grub menu?

I have 3 hdd
1.Main with grub menu Qubes os
2. Manjaro Linux for mobile app development.
3. Windows 10 for gaming only :slight_smile:

But When I boot, Qubes grub menu pops up but there is only Qubes os.
If I edit GRUB_DISABLE_OS_PROBER="false" in /etc/default/grub file
and then

sudo grub2-mkconfig -o /boot/grub2/grub.cfg

Does this make other os shows up in grub menu?