Did you rank these in a particular order, or is it just four that you like?
In preferred order.
Jerboa has everything you might need related to Lemmy functions, as it is the native app developed by the same Lemmy authors. But I feel the interface is not as good as Thunder’s. And as for Voyager, I dislike the interface because is reminiscent of old iPhone interfaces (even though you can change it something similar to Android). And as far as I remember Thunder’s post’s comments view is better for me. In my opinion Thunder has the better combination of Function, UI and UX.
I would suppose with the same gestures as the image ones but since you mention is not that then I would assume it could work with native iOS gestures? I’m sorry, do not own any Apple devices. I suggest asking on Thunder’s community or making an issue on Github.