When attempting to launch Steam, I get the following:
kz6fittycent@bumblebee ~ $ LSI_DEBUG=1 steam Running Steam on solus 3.9999 64-bit STEAM_RUNTIME is enabled by the user Pins up-to-date! /home/kz6fittycent/.local/share/Steam/steam.sh: line 823: /home/kz6fittycent/.local/share/Steam/ubuntu12_32/steam-runtime/run.sh: No such file or directory
Here's a list of what's present in that directory:
kz6fittycent@bumblebee ~ $ ls .local/share/Steam/ubuntu12_32/steam-runtime/ common-licenses COPYING i386 pinned_libs_32 pinned_libs_64 README.txt
I've included a screenshot of my current settings.
Let me know if you need more info.
P.S. I've tried toggling "Force 32-bit mode for Steam" and got the same error.