Actually, you can, with Lockdown for iOS or Lulu for macOS. There are other alternatives available, these are just a pair of FOSS examples. You can totally block *.apple.com if you really want to.
It’s not quite the same though. With a custom android ROM, you can be pretty confident that everything kernel-and-up is not spying on you. On iOS and macOS, you don’t have the same level of verifiability, as the OS could just circumvent any VPN/firewall you might have configured. They might pinky promise not to, but without running another external firewall it’s not really verifiable.
Actually, you can, with Lockdown for iOS or Lulu for macOS. There are other alternatives available, these are just a pair of FOSS examples. You can totally block *.apple.com if you really want to.
It’s not quite the same though. With a custom android ROM, you can be pretty confident that everything kernel-and-up is not spying on you. On iOS and macOS, you don’t have the same level of verifiability, as the OS could just circumvent any VPN/firewall you might have configured. They might pinky promise not to, but without running another external firewall it’s not really verifiable.