Exactly. There absolutely is an open source Android experience (at the level of the applications and API -- drivers are a different story) for those who want it. It really doesn't suck, and it's a clean migration from the commercial environments (which is to say, you don't really need F-Droid as almost all this stuff is in the Play Store already).
Open source on Android is in pretty good shape on the whole, which is one of the big reasons why Unity never really caught on except among the tiny fraction of developers who were genuinely into Linux desktop application development specifically.
I know. The point was that if you are an Android user and want to try out "open source app X", there's no need to install an open ROM or F-Droid. Just grab the app from the existing app store. The path between "normal users" and "pure free software" ones is smooth and easy. It's not like the desktop where you need to convince people to install Ubunto or Arch instead of Windows or macOS.
