That is my one concern going back to a pixel (came to a 6T from a Pixel 2. I love Oxygen OS. It's so much better than what's on the pixel. Nova did help when I had my Pixel 2 but little things like the gaming mode, reading mode, and just the general speed and fluidity are better on the 6T and I really haven't been at all disappointed with the camera. It's very solid and in some cases I think better. Video is far better from an audio standpoint, any videos I took with my Pixel 2 have very little sound.
So let me ask this of you guys that switched. How are the haptics? All I remember hearing about the 6T before I got it was how bad the haptics are and maybe I've just gotten used to them but I have no issues with them.
Also, are you stuck with Google's gesture navigation or can you use the old three buttons? I can use googestures if I have to but I really don't care for them and find the old tried and true buttons to be better.