Forgot to add... a few threads have been started on the Steam Forums, here is an example.
Memory overflow caused by steam client, any idea how to fix it?
note: the thread suggests this is observed on Windows as well
That’s what I found as well. And I forgot to close the issue as it resolved itself after a few days.
Nothing extracted yet.
Your system information
Please describe your issue in as much detail as possible:
What I expected should happen: Opening my Steam Client and seeing my games library, then playing a game.
What did happen: Steam Library didn't display, entire 16 GB memory got filled, then entire 24 GB Swap got filled, then computer stopped responding.
Steam System Information: https://gist.github.com/FrankNoWar/3246d66a677aec55367fef350e00b7ad
Steps for reproducing this issue: