Why are there multiple OSes available what is the best option

As I said Fairphoe and Fairphoners are special. Google collects many Data of you and your usage and many people don’t like that. So they don’t want to use google. The problem is the using google services make the work with Andoid easier and some Apps won’t work without the google services. So other people don’t care about it and simply install the google services. A third party like me is someware at the middle. I installed the google services and deinstalled App by App everything of it that I didn’t want to use and restricted everything thats left to the rights they need. Thats more work but gives the best balance to me.

You just have to chose your way.