When YouTube was acquired by Google, it was already pretty similar in shape as a product to what it is now. The biggest differences are scale, the addition of advertising, and ancillary integration with other Google services. The first is a function of growth, the second is exactly what Google would be expected to do to monetize the service, and the third is another logical implication of "acquisition". (You could quibble and say they added vertical shorts and live video, but I don't think those are even fundamentally different from a product perspective from what YouTube was already doing in 2006, just fast-forwarded to adapt to the consumer technology we have today).

That's very different from Android, which was an unreleased prototype that had zero users and was dramatically different even from what ended up shipping as the first product, let alone what it is today. Android at acquisition would be unrecognizable from what the majority of people worldwide are typing on this very minute.