The OSS alternatives do download and install the Linux builds.
But again, the whole point of GOG is that you don't need a special client in the first place. You just get ordinary installers, and don't have to deal with the game requiring a third party's proprietary launcher.
But again, the whole point of GOG is that you don't need a special client in the first place. You just get ordinary installers, and don't have to deal with the game requiring a third party's proprietary launcher.