I don’t use them and I’m pretty sure overwhelming percentage of the user base doesn’t use them either. Because I’ve yet to see an argument I’m buying this phone because it has a range finder. All these extra cameras hardware are forced onto us because of the social media/selfie craze. As for your personal usage case I can understand you’re using range finder and measuring options but they are not utilizing different cameras. They are using phone sensors like gyroscope, acceleration, gps and algorithms not your different cameras.
As a side note you yourself admit that it’s not something you needed but found out and did even trust it.