I’m sorry if this sounds like a stupid question but why won’t android just straight up run like Linux distros that almost run on any computer? Why does each model under each manufacturers require separate maintainors seperately? Aren’t they running like almost similar hardware like processors from Qualcomm, mediatek, Exynos, etc? Why hasn’t there been a single android os that is compatible with all the device?
Android uses the Linux kernel so, all android hardware has Linux kernel drivers.
Also android is kinda open source. The hardware layer source mostly isn’t released by the vendors. Its mostly illegal, but they get away with it anyway.