I've had huge lag problems since update 8. Green flashing LED when trying to wake up, huge camera lag, system unusable when the browser and one other app are open or any time the memory usage in lighthouse showed over 80%.

df -h said I had 6GB free, but btrfs fi show said 13.75GB used. Now after a balance I'm on 11.13GB used, and all the lag has gone.

Thanks coderus!