How are these points specific to OO vs. FP, instead of just paradigm I know vs. paradigm I don’t?

F# code, from my somewhat limited experience, seems to almost always be organized logically (top to bottom, types separated from functions) using well-established patterns. Obviously if you decide to write a bunch of classes and mutating code in F# when more idiomatic approaches would work, it’s going to get hairy.

I feel like I’m missing your point.