control: tag -1 moreinfo, unreproducible I was unable to produce this, but I don't use KDE, and I assume its somehow specific to how steam works when running under KDE. In particular, I see libkdeinit5_steam nowhere.
I am also able to launch games directly with "steam steam://rungameid/#########" Do you know whether this is specific to a particular game? So, can you do some more debugging and provide more info? Best wishes, Mike