You're right, after tinkering around I also found settings that are ok. But that's only part of it. There are so many things that just work better on macOS, e.g. the "tap-to-stop" or "vertical-scrolling".

I also think that the App developers should not have to shoulder this. App developers have way better things to do than care about touchpad events... like fixing issues and developing new features. I don't see where smooth scrolling should be an App feature...