Yes! And the visuals are horrific too, just look at that tabbar. If anything, it’s a showcase of just how hard it’s gonna be to build a good app this way.
Is there anything about native apps or conventional websites/apps that would improve the visuals?
Native widgets and UI elements, native navigation functionality. Web apps get worse the more they try and pretend to be native apps and implement things like their own scrolling, or their own back/forwards navigation.