I was reading a piece elsewhere on the website about downloading Movie Maker and I thought: nowadays, if you have your brain in 'scanning' mode you can't do anything. Windows 'screams' at me "BREAKING NEWS" on the toolbar for some unimportant news. Ads everywhere. UI inconsistencies everywhere. You can't have your critical part of your brain on if you want to do anything. You have to develop some kind of partial-UI-blindness. I know this is a fact for ads and website styles which resemble ads [someone on a wiki had this problem]. I suspect that's also the reason behind Material Design: make every button confusable with an ad.
Again, to the point now: do you ignore everything on the screen which doesn't matter? Are you aware of doing it? Will it ever end?
Note: before replying read this: defaults matter.