steam¶

Security objectives of the steam profiles:

Ensure no user data is accessed by either steam or steam games
Limit what steam/games can access to the host

Overall architecture of the steam profiles:

steam
├── steam-web              # steamwebhelper (sandboxed)
├── steam-fossilize        # Update shader cache
├── steam-reaper           # Launcher tasks up to the creation of the sandbox
│   └── steam-bwrap        # Native games
│       └── steam-game     # Proton games (sandboxed)
├── steam-gameoverlayui    # Steam game overlay
└── steamerrorreporter     # Error reporter

Warning

This profile is not installed by default as it is too unstable.