Famous quote: "quantity has a quality all its own".
The strength of Android is that you can customize it. Some people like Touchwizz. I prefer oxygenOS.
OnePlus's phones have that, and it's great. Of course, OnePlus also have some nasty privacy failures … but then, Apple have some nasty openness failures.
I'd love to be able to just buy a decent phone, with a replaceable battery (because the batteries fail first), which I, not some vendor, own.
Sadly, the newer generation does not have that. Google given up the update to the vendor, which in turn do what they do best, not updating the goddamn phone.
If I were to add to the brief spec I defined above I'd also require speakers at both ends of the phone for stereo output, and require keeping the 3.5mm jack (yay S9?). I still think Samsung likes to make slippery bar-soap phones that I cant hold.
I still don't like how permissions are done even on LineageOS - I wish I could grant access to the camera for an app "for the next 5 minutes".
Now I'm really off topic. I shall diminish ~
https://source.android.com/devices/architecture/treble
Large parts of Android-the-OS is implemented in middleware running on the same runtime as Android's apps, which should have made this kind of portability possible earlier in the development of Android. But here it is.
I wish Google would define a "standard" like Intel has with what is and what isn't an "Ultrabook". As in, to be a "Nexus" phone it must have a minimum resolution of ..., it must last for x hours of video playback and x hours of wifi use, it must have the damn alert-killing side switch, it must have a camera of a minimum quality (megapixel/zoom/can record at 1080p@60hz), etc...
Google should be defining what an Android phone is in terms of hardware; define a brand other makers can adopt so customers can trust the standard to at least cater to those needs. And that isn't even getting into how fucking awful the Google Play store is. What a malware magnet.
Sorry this is somewhat off-topic, I just feel this is how Google has lost us and why we seek alternatives.