Without going into specifics, there appears to be significant differences in module capabilities from not only the Studio but the User Interface when using Safari. First as the developer, a great example is Apps - Storefront - and choosing a category of apps. It brings back a blank result. In this case I clicked Communication. As you can see from the screen, it is blank. There is repetitive regardless of the category. This is just one example. Then as a User, the Messenger app is not populating fields Threads or Replies.
Just a couple examples, but there are countless examples littered throughout the software. As a high percentage use iPhones, this is a significant problem as we dig deeper into the User Experience potential.