Hardware manufacturers on average do a shitty job keeping their fragmented operating systems up to date. My iPhone has gone through many major version updates. If hardware manufacturers don’t want to quickly, or ever, update they should have just shipped their phones with stock Android, and allowed us to update it to whatever is the latest.
Stock Android wouldn’t include the kernel drivers and compatibility layers needed to run your phone. I think you’ve missed the point.
Sorry, I thought it would be obvious that hardware drivers would be provided by the hardware manufacturer, and then on a fresh install the OS would just… ya know… get them from the manufacturer. 😉
This is a gross misunderstanding of AOSP and OEM compatibility software and kernel driver integration, that comes from a very naive interpretation of how Android device vendors build AOSP for their hardware.
You should probably learn more about it before embarrassing yourself with this kind of arrogance. I have experience in both but, as it’s not my job to educate you, you’ll have to do so yourself.