For me, a big one is integration with email / calendar / contacts services that aren't Google. I don't know where Google dropped the ball here - Android was originally amazing for this kind of thing - but at some point they started bolting a lot of features specifically on top of Google accounts, and out of the box Android doesn't even understand how to sync with CalDAV / CardDAV. So if I want my Nextcloud stuff to work at all I need to go and install a third party app. The third party app works great (I happily used DAVx5 for many years), but it's ridiculous when iOS has all that integration officially supported and available straight out of the box. And it even does clever things, like suggesting contact details it learns from my (Fastmail) email. Android has that stuff, but it is completely on the cloud, and it only works if you give everything to Google.
dylanmccall
That's why runtimes are the way they are: for most simple desktop applications, they shouldn't really need much on top of what is already included in the GNOME, KDE, or Freedesktop runtime they depend on. (If you're curious, flatpak run org.gnome.Platform and poke around). Those runtimes get regular updates within each branch for important bug fixes. Alas, many applications add at least one or two external libraries they need to build / distribute themselves, and some applications add a lot of them. But it isn't like every application bundles its own libssl or something.
Yeah, permission popups are absolutely a thing. The system for that is called Portals: https://docs.flatpak.org/en/latest/portal-api-reference.html. The idea is an application asks for the tightest sandbox it needs to run, and then uses the Portal API to request capabilities at runtime, such as access to specific files or permission to start automatically. The catch is you can't just make legacy applications magically use an API like that: it requires work on both ends. But it's certainly happening, bit by bit :)
The increasingly fuzzy text from being jpeged too many times is exquisite.