How do you inquire the firmware version?
All my sensors are always on and always gathering, btw, they are connected to wired power. So no startup / warm-up times.
I've been looking at the SGP30 but I decided not to buy it. IIRC it was both expensive and there was some trouble with either supply or signal voltages, either being not 3.3V. Or a difficult way to calculate real world values (like the bme680). How did you resolve the issue? If you got it working I think I'll have a go.