Ok, let me burst all of you that perfect bubble... with arguments.
iPhone XS Max's benchmarks aren't wrong. But what's the point of saying it's the best ever, if you don't mention any other competition (with better numbers by the way)? I'll tell you why: sensationalism.
Where the iPhone XS Max reaches 660 nits in the sRGB and DCI-P3 color gamuts, the Note9 reaches 710 nits at full screen ratio, not to mention that the screen is capable of 825 nits of brightness in situations where 50% of the display is active (aka not black), which shows you that it has brightness distribution capabilities depending on the entire screen used ... something that no iPhone has.
However, these are just units of brightness. They have nothing to do with quality and sharpness of the screen. That is given by pixel density and in that department the Note9 also exceeds the iPhone XS Max (516 ppi vs 458 ppi).
And I want to be clear, I'm just a regular and modest stock Android / Pixel user, ok? I have no sympathy for Samsung. But facts are facts, specially when you do some simple fact checking... something people don't do nowadays.
Just keep the joy inside your nice

Just don't pretend you have the best screen.
Peace.
PS: I'm just getting the facts from DisplayMate, the same DisplayMate MacRumors mention.