Screen burn in is kind of a BS story. It's image retention of the nav bar, not burn in. Very typical of AMOLED screens. I am sure the noise issue is software and will be fixed next update. The blue tint at an angle thing is a big deal. I can't imagine using it on my bikes handlebars for Nav with that issue. Doubt that is fixable.
If I were buying today I would grab a deal on a Pixel 1, or an S8.
Still betting you will stick with Iphone though.