system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why aren't we using flash on smartphones or new technology anymore, when it used to be a good option for animation?

I remember that when the iPhone appeared they decided not to use flash (which seemed awkward cause apple owns adobe), now even andriod has no flash and it's starting to go away faster and faster on new technology. 

PS: I don't miss Flash webpages, those are just bad. But banners and different forms of animation where good many times.
gpt
apple does not own adobe. 

the basic capabilities of flash with regards to animation, streaming and vector graphics have all been included in web standards or have been given special treatment by proprietary browser capabilities.  

Additionally, the flash plugin was/is notoriously unstable, responsible for what some said was the vast majority of browser crashes across all browsers.