Here it is:
stephweb@MrRight-PC2:~> cat /etc/fstab
UUID=b0921033-a92a-4dea-a620-d34d77bb8618 / btrfs defaults 0 0
UUID=b0921033-a92a-4dea-a620-d34d77bb8618 /var btrfs subvol=/@/var 0 0
UUID=b0921033-a92a-4dea-a620-d34d77bb8618 /usr/local btrfs subvol=/@/usr/local 0 0
UUID=b0921033-a92a-4dea-a620-d34d77bb8618 /tmp btrfs subvol=/@/tmp 0 0
UUID=b0921033-a92a-4dea-a620-d34d77bb8618 /srv btrfs subvol=/@/srv 0 0
UUID=b0921033-a92a-4dea-a620-d34d77bb8618 /root btrfs subvol=/@/root 0 0
UUID=b0921033-a92a-4dea-a620-d34d77bb8618 /opt btrfs subvol=/@/opt 0 0
UUID=cddb80b5-9bb5-49fb-98ca-eab39d91e9cc /home xfs defaults 0 0
UUID=b0921033-a92a-4dea-a620-d34d77bb8618 /boot/grub2/x86_64-efi btrfs subvol=/@/boot/grub2/x86_64-efi 0 0
UUID=b0921033-a92a-4dea-a620-d34d77bb8618 /boot/grub2/i386-pc btrfs subvol=/@/boot/grub2/i386-pc 0 0
UUID=7ccd6d0d-9cbe-43b1-88ff-27bad4191c13 swap swap defaults 0 0
UUID=b0921033-a92a-4dea-a620-d34d77bb8618 /.snapshots btrfs subvol=/@/.snapshots 0 0
UUID=5BF8-A35C /boot/efi vfat utf8 0 2
stephweb@MrRight-PC2:~>
IOMMU Controller habe ich im Bios aktiviert, scheint jedoch ebenfalls keine Wirkung zu zeigen!