HN is literally full of contradictory stories when it comes to which model is better. It's impossible to know if one is objectively better than another, I suspect they're more or less equivalent. People who just recently had a particularly good experience will post that the model they used is better than the other ones. People who just recently had a particularly bad experience will say the model "got worse"...
If you enable the advanced flow as described in the linked Android Developers Blog, then you can install any unregistered app, which includes those distributed by app stores like F-Droid.