Thanks to the way Google's for years now been deconstructing Android and pulling OS-level pieces out of the operating system itself - so they exist as regular ol' apps and can consequently be updated quickly, frequently, and in a way that reaches everyone instantly, regardless of what phone or carrier they're using - even Android phones from eight years ago get updates numerous times a year that are all virtually equivalent to an entire iOS operating system rollout.
Apple is widely rumored to be introducing variable aperture on the iPhone 18 Pro and Pro Max later this year, and Samsung is apparently paying very close attention to iPhone-related rumors. That's because the Korean company is now said to be considering re-adding the feature to its lineup as well. The Galaxy S9 and Galaxy S10 both had variable aperture main cameras, but the feature was dropped with the Galaxy S20 generation in 2020.