While I know how much this is not a bug, I wanted to highlight that as a bad gameplay design conception.
So I was mining and there were the need to mine wall with 4% progress per tile, I used axe since other tools were not found yet.
Some tiles required up to 10 minutes to be mined, during that time, my laptop started to go sleep because I did not touched keyboard and mouse for several minutes.
This is obviously not how processes in game should work.