Not on the device I use for the system (/dev/sda):
Filesystem Size Used Avail Use% Mounted on
dev 7,8G 0 7,8G 0% /dev
run 7,8G 1,1M 7,8G 1% /run
efivarfs 128K 127K 0 100% /sys/firmware/efi/efivars
/dev/mapper/vg1-root 50G 12G 39G 24% /
shm 7,8G 0 7,8G 0% /dev/shm
tmpfs 7,8G 14M 7,8G 1% /tmp
cgroup_root 10M 0 10M 0% /sys/fs/cgroup
/dev/mapper/vg1-home 416G 100G 315G 24% /home
/dev/sda1 549M 211M 339M 39% /boot
/dev/sdb 3,6T 1,8T 1,7T 52% /mnt/385a4fee-1f44-4433-995a-3b1ffe92fc3f
/dev/sdc 1,8T 1,7T 23G 99% /mnt/bc4fd1af-d37a-431c-854f-d8624c8f1f66
tmpfs 1,6G 8,0K 1,6G 1% /run/user/1000
EDIT: I had the problem again even with the latest packages from gremlins.
EDIT2: Another thing I've noticed is that if the problem doesn't happen after logging in for a few minutes, it doesn't happen afterwards.