If you look at developer experience it’s absolutely is true. Android users just prefer free/ad supported/pirated software. If you’re an android user look at your own habits. What android applications have you purchased?
You can search for statistics from any source online and you’ll get the same results. But in the end if you code for iOS you need to test and debug for fewer devices and you will make more money overall. There are wayyyy more android users but 70% of all mobile app spend is on iOS. Deving for iOS just makes sense if you like money.
https://backlinko.com/iphone-vs-android-statistics#iphone-vs-android-app-spending
You are 100% right.
If you dev for only one you will be leaving money on the table. But for small / solo devs I can 100% see why focusing on iOS and those high paying customers makes sense if all you care about is money.
Then once you have a customer base then you build out an android team/app.
I’m not saying it should be this way. I’m just saying I understand why it is this way.