This isn't applicable to the G-Series, but the MX Master and M720 (plus some other niche models) support smooth scrolling, which can only be enabled on Windows

This isn't applicable to the G-Series, but the MX Master and M720 (plus some other niche models) support smooth scrolling, which can only be enabled on Windows and macOS using their 300-or-something Electron app that nags you to sign in to their stupid cloud service. Of course the basic features (pointer/scrolling speed) can still be configured within the OS.