No, Saints Row Gat Out of Hell was a separate release, it was included in a double pack with Saints Row: Re-Elected once but this is not the standard release.

Saints Row IV: Re-Elected has different content due to ratings in AUS, so you can only play with others on the same version as you.

You can disable auto-update on GOG Galaxy if you have the game currently installed. (Cogwheel > Settings > Game features > Untick 'Auto-update games') A Legacy Version of Saints Row IV will also be available via a separate Beta Branch on GOG and Steam.

To access the old version of Saints Row IV, right click on the game in your library, go to properties > beta and use the dropdown menu to select the version you want. For more help with this: https://help.steampowered.com/en/faqs/view/276C-85A0-C531-AFA3 However, the differences between old and new versions will be minimal, and save games will be compatible.

We will update the community when we have a locked-in date for this.

Official support will come for Linux later – we will let you know when this is going to be available.

Mods should not be affected, and should work as normal aside from any special cases where elements of the mod may clash with the code of the game.