I know that this question is often asked, but I didn't find an answer for my case. I am running openSUSE with one 50 GiB btrfs partition and one 700 GiB part mounted under /var/lib/libvirt
df -h shows me that the 50 GiB partition is full, but
du -sh /* shows me that the largest folder is /usr with 5 GiB and /var/lib/libvirt.
I have removed all snapshots with snapper and gained 2 GiB with that, but where is the rest of my disk?