[AstixAndBelix]

I mean, that's absolutely true for Android hardware. If MediaTek or Qualcomm or any other supplier for the various parts open sourced their drivers we would be able to port any new version of AOSP to basically everything that has enough juice to run it and then some.

Unfortunately these companies control the drivers and have the strictest licenses imaginable, so even companies like Samsung or Google can only offer updates as long as their suppliers allow them, after that it's just waiting for the ABI to break and the old drivers to stop working