I've tried to avoid spoilers below, but there are some minor ones for anyone reading who has never read Dune Messiah.

I've read Dune at least a dozen times and followed up with Dune Messiah a few times. Sometimes I get that feeling of disjointedness. At its most extreme, Paul feels like a total stranger. (Stilgar might as well be a different characters; we see a changed character, but not the change.) Sometimes it feels like the books flows nicely despite the time jump. My best guess is that it depends on what aspects I've been most focused on while reading.

I'm reserving judgment as well, but one part is really stuck in my craw. Although I felt like Villeneuve's Chani was generally stronger I felt the last scene made her look like a child and my first thought was that it was a weak attempt to set up a particular relationship for Part 3.

> but I can also see how they will make it flow much better into Part 3 than Dune > Dune Messiah

Lynch could have made a Dune Messiah. Villeneuve is not able to express the mysticism.

I wish just for once these directors had simply made the movie of the book and damn the consequences of what Hollywood thinks audiences want. The movies that directors such as Peter Jackson make are brilliantly done - if only the story wasn't hacked. And that's not even addressing the worst of the travesties such as Radagast the Brown being covered in bird shit and the dwarves in The Hobbit being a bunch of circus clowns.