For example my pet peeve is that apps like Waze or Uber are allowed to only request full location tracking, even while running in the background. As a user you cannot restrict location tracking to happen only when the app is running. This is an either-or proposition. Either the user allows location tracking while in the background, or you cannot use the app.
And surely you can manually enable and disable location tracking per app, but that's way too cumbersome. Just imagine trying to start navigation while at a red light. Whereas with Android I used to be able to enable/disable location tracking globally, since you get a global shortcut that you can access in a swipe and tap.
I also use 1Password as a password manager. Well, iOS has the same problem as Android where apps can read the contents of your clipboard, including copied passwords. And compared with Android it's not common to see password managers use third-party keyboards or accessibility features to side-step copy/pasting passwords. And sure, apps have an API to integrate managers like 1Password or Lastpass, which is nice when it's there and it's surely nice when it works in Safari, but too few apps use it.
In other words, even though the privacy/security story is currently better for iOS, IMO it's not that good either and I hope that Apple and Google will work on improving this situation because I'm seriously thinking of going back to a dumb phone.