No matter the manufacturer, every Android phone has one thing in common: its software base. Manufacturers can heavily customize the look and feel of the Android OS they ship on their Android devices, but under the hood, the core system functionality is derived from the same open-source foundation: the Android Open Source Project. After over 16 years, Google is making big changes to how it develops the open source version of Android in an effort to streamline its development.
True ! But there is a resurgence of ROMs. Squeezing any precent as low as possible is their goal, killing open-source/alternatives as much as they can !
I really hope hardware/software alternatives in the phone market get some funds to get away from the big tech monopoly.