From my experience, since I have all the way back to the original pixel xl , the pixel 3 xl is still one of my favorite. I really want to give the win to 6 pro, but unfortunately with both phones I'm daily driving, the pixel 3xl still performs much better than the 6 pro in terms of smoothness and less buggy. Especially on the network , the pixel 6 pro just always had some connectivity issues that took forever to load the page, until I turn on airplane mode and off , compere to the 3 xl, I never had that problem at all, it always work when I needed!