Only the OGs will remember when Steam would sometimes rm -rf /* your system. https://github.com/ValveSoftware/steam-for-linux/issues/3671
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Let me tell you about Bumblebee and their issue #123, though that one's even worse seeing as installing system packages are done as root.
(Their install/update commands included
rm -rf /usr /lib/nvidia-current/xorg/xorg)