We can see that you don't know about Android updates and that you are comparing nonsense.

Let's take an iOS update. It's what?

1) updated system applications (new Safari, mail, application launcher,...)2) driver optimizations3) new systems4) security updates5) new APIs for developers.

On Android, the updates are different.

1) system apps update even on 7 year old phones with old OS, and this is the most visible for the user. Everything is in the store, up to the clock, the camera, the search and the application launcher2) the drivers go through the Play Store (Mainline if you want to find out)3) indeed this is the missing part , the want phones will not have the dark mode for example. But many functions in the end are also modular, we have seen this with contact tracing, and nearby share, RCS, .. all available on 7-year-old phones too4) managed by security updates and many by the Play Store, and again the Mailine project, do you have an example of a single uncorrected critical flaw? 5) in general, everything is backported with Android studio and Jetpack. Developer 8 hours a day here

To call it planned obsolescence is to show a complete misunderstanding of the word obsolescence and updates via the Store and Play Services.

You don't throw away a 5-year-old phone, it's still evolving and won't stop working.