What the heck is an "Android Experience"? That seems like some vague aspiration or ideal that doesn't mean much. You probably have an idea of what you want or prefer, so easier to state that.
No clue WTF tosh means, but it doesnt resemble Android anymore, so no, theres no "android experience". The underlying OS doesnt change that. If a Samsung person was handed a Pixel or any other phone that stayed true to Vanilla Android, it'd be completly different to them, that's not debatable.
Are all MacOS and iOS users familiar with BSD UNIX since thats what in there deep down? Nope!
I disagree. It's quite trivial to install a different home screen, keyboard app, etc. If you want a more Google experience out of the box, sure. But like 20 mins of customization on a Samsung can make it pretty similar. I really like how much customization you can do good lock.