Whenever I try to open up steam, steam will just hang and not display anything at all. I did find a way to partially fix this through 'steam --reset' but that didn't work fully. It was able to be "workable". As in: able to access settings, friends etc but no main window stuff like library or store.
One more thing I think this error has something to do with this as I checked in the terminal via 'steam -c' and saw this running on repeat frequently:
"Could not connect to X session manager: Authentication Rejected, reason : None of the authentication protocols specified are supported and h"