Performance of the processor is the big thing here. I have full faith in Google when it comes to software - having "upgraded" from a Pixel 3 XL to a Samsung S20FE, the hardware upgrades are great but the overall user experience (at least, for me) is far worse.
Battery life should be much better than the Pixel 4 series given it's built via a 5nm prices, but the real answer will be largely determined by how efficiently it operates under different loads.
Gotta say, while i've never been the least bit bothered by Google's prior minimalist designs, those renders are HOT!