Valve's official Proton release may not provide optimal compatibility for specific games, or community contributors may discover improvements not yet implemented by Valve. Use Protonup to Manage Custom Proton Versions Steam -> Settings -> Steam Play -> Check the box for 'Enable Steam Play for supported titles AND 'Enable Steam Play for all other titles' as pictured below: Use the Protondb database to confirm if a specific game has been tested and verified working using Proton. It's based on the WINE project with some tweaks and additions by Valve. Proton is a compatibility layer tool which enables support for some Windows games on Linux. It can make system wide changes so be sure to read everything before entering 'Y'. While Ubuntu switched the default Firefox web browser to a Snap package last year, Linux Mint struck a deal with Mozilla to keep a non-Snap version available.IMPORTANT NOTE: Be very careful when using sudo with ANY Command. Canonical controls the only Snap 'app store,' and Snap apps often take much longer to open than regular software. distros not based on Ubuntu or Arch), the technology behind Snap has been criticized by some in the Linux community. Even though there are some advantages to Snap packages, especially for desktop Linux systems with fewer traditional packages available (e.g. Snap is a containerized package system developed by Canonical, intended to make desktop Linux software easier to install, update, and use across different Linux distributions. Steam and its games are sandboxed from the rest of the operating system, so games can't see all of your computer's files - similar to the new Steam container on Chrome OS.

The new package contains Steam and all of its dependences in one download, without the extra steps that are sometimes required for Steam on Linux (like enabling 32-bit libraries or Mesa drivers). Steam and its games are sandboxed from the rest of the operating system

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