I find that using the DCP profiles from Adobe Camera Raw with PL allows a closer match to the JPEG colours on my G9. You can get these profiles by installing the free Adobe DNG converter, and then import them to PL in the Colour Rendering panel from their installed location which depends on whether you are using Windows or macOS. On a Mac they are in “/Library/Application Support/Adobe/CameraRaw/CameraProfiles/Camera”.
There’s a reference to doing this here and it’s mentioned in other threads too.