I have tried to install SC in Linux (Fedora, Pop OS, Garuda) with Lutris, Bottle and with Lug-Helper. Nothing worked. The RSI Launcher starts, and it loads down a lot of stuff (with Lutris and Lug-Helper), but after a time it will shut down and only shows an Error message (with Bottle it shows instantly an error after pushing the download button in the launcher). Can you install the game under Linux?