How many different models of PCs get released? How hard is it to patch any of their OSs?
If you want to go that route, each manufacturer is responsible for their own drivers for windows, linux, and possibly Mac (though if it’s novel enough, they will do it). Then think about the components that make up a PC. Motherboard, CPU, Memory Control, IO, OS, Audio, Video. Each of those needs to release patches. So its orders of magnitude more than any Android OS. It’s just pure laziness on the hardware manufacturers that don’t want to invest in software/support. They want Google to do that.
It's the other way around with Android. Google does a new core release, and each individual manufacturer is responsible for modifying it for their devices. If you don't bother to upstream your drivers to mainline Linux and use a skin which heavily modifies core Android, backporting those fixes can quickly become a nightmare.
Apple made a product. Google made a software revenue stream. Entirely different things and now the Android makers are crying foul that they too have to do product engineering support. Nah. This is what you get when you rely on out of house innovation. I hope they all close shop. Not because I like Apple, but because they aren’t in the business of making products, only selling you hardware with bolt on software that it vaguely supports. Like buying a raspberry pi that can make phone calls. Google has them all by the balls.
(E.g. Samsung still limits Now brief to latest devices even though it is a 99% software feature + 1% cloud with 0 hardware requirements.)
