As a Maemo user that recently got both Android and iOS devices for software porting and testing: hardly. When it comes to reliability, glitches, etc. they're pretty comparable, with Android being slightly better.

However, I have only seen Replicant, AOSP and LineageOS. What you get packaged by your hardware vendor might be worse.

You must mean better in that Apple is still locking you out of hardware you own (e.g. NFC).