KDE Neon pkcon update sub-process error

I'm on KDE Neon and running sudo pkcon update, which is giving the following error:

Fatal error: Error while running the transaction: 
E: Sub-process /usr/share/dpkg/scripts/steam-launcher.sh pre returned an error code (127)
E: Failure running script /usr/share/dpkg/scripts/steam-launcher.sh pre

I don't have steam installed, and that script does not appear to exist. I've tried: * sudo dpkg --configure -a * sudo apt --fix-broken install * sudo apt dist-upgrade but they did not help.