The twitter PWA is actually a very good PWA. But it doesn't implement some gestures like swiping left to see more feeds on the home screen, and has little to no

The twitter PWA is actually a very good PWA. But it doesn't implement some gestures like swiping left to see more feeds on the home screen, and has little to no animation support (retweet dialog pops up, instead of animating in like it does in the native app). It also does not do paint holding, so you get a temporary white screen when swiping back to the previous screen. But all of those problems could be fixed, with current web tech, afaict. Is there any other lackings (which might be fundamental and unfixable for a PWA) that you had in mind?