Unfortunately, not every component is open source, they publish anything that they legally can. But key components are closed source e.g. camera app. Google makes sure you cannot just use your own android ROM, so software-wise, practically, they are just as bad as a Samsung.

hardware-wise: big, expensive, but easy to repair. Hoping to see a new wide cam, because the actual is horrible.

At least I know what SCP is. I use it sometimes.