Apple has definitely copied features, and even a few design elements (see Palm Pre UI), but they always tweak them to make the product appear unique and "innovative". With the Pixel 3 and the Pixel Slate, even the most oblivious customer can see the resemblance with Apple's products. That, combined with the lower price points, kind of gives the impression that Google's trying to make cheaper versions of Apple's products. I know, not logical, but people don't always like cheaper.
Except, is the Pixel actually cheaper? Maybe this year with the bump up in prices for the iPhone, but as I recall the Pixel 2 was actually more expensive than the iPhone (in particular, priced the same but with less flash storage).
They started pretty similar, and have traded in expensiveness depending on the year and which size phone you're comparing. These are all base storage size prices in USD, ordered from cheapest to most expensive.
There's not much in it really. Looking at UK prices, the Pixel 3 is £11 cheaper than the iPhone XR which is basically nothing when you're talking about a £700+ phone. The XL is a hundred quid or so cheaper than the iPhone XS which is a bit more meaningful.
To balance that, they only promise three years of software updates. It'd be treated as an absolute scandal if an iPhone was dropped that quickly.
