Offtopic: Once you have built and installed plain AOSP, you'll realize that there is no "Stock/Vanilla" Android - It doesn't even haven an login account system.

Offtopic: Once you have built and installed plain AOSP, you'll realize that there is no "Stock/Vanilla" Android - It doesn't even haven an login account system. The time has stopped like 5 years ago or so in terms of the visual design. You can check how it looks like in the emulator environment if you're only lightly curious. Even Lineage isn't stock, although they've done a great job to make it feel like that.