Steam won't open? Here's what you can do to fix it

If your Steam client won't open and you can't access your library or storefront, don't fret. There are a number of easy solutions that work in most cases.
iThinkDifferent

NotProton Brings Steam Play to the macOS Steam Client

NotProton is an open-source app that turns on Steam Play in the macOS Steam client and runs Windows games through CrossOver ...

DroidDeck Brings Valve’s SteamOS to Android Devices with Native Big Picture and ARM64 Proton

DroidDeck brings Valve's SteamOS and Big Picture mode to Android. Play PC games on Snapdragon devices via ARM64 Proton without root or dual booting.
GamingOnLinux

Steam Client Beta for October 1st brings many Remote Play Pyrowave improvements

The new Pyrowave video codec is seeing rapid improvements in the Steam Client Beta, with an update for October 1st now ...