Scrolling transition on the person page is jarring and unnatural
The person page has about four inches of header information at the top. When we start to scroll down the page, the designers have chosen to keep about one inch worth of information fixed at the top of the window, rather than letting it scroll off like the rest of the page. This includes a ribbon with the name, dates, and AFN, and a ribbon with the menu: Details, TimeLine, etc.
Both of these are fine. The problem is the transition from one to the other is jarring and frustrating. First, the page scrolls normally until just the menu ribbon is visible, taking the top half inch of the window. But then this ribbon and the whole page get pushed back down half an inch and the name and date ribbon is inserted above it. There are two problems here:
1) The header goes from taking four inches and gradually decreases to taking half an inch, but then it goes back up to taking an inch. This grabbing of space that has already been reallocated to the body of the page is vaguely insulting. Once the space has been ceded from the page header to the page body it should not be taken back.
2) If I'm scrolling up, I don't want to see my whole page move down. It just is a bad experience. It's bad web design.
Here's an example of a page that does this thing better, with no taking back space and no downward motion: https://www.apple.com/iphone-14-pro/
I think the most straightforward solution on the person page is to switch the person name / date / AFN ribbon from the big style with a picture to the narrow style that's half an inch high as soon as only a half inch of it remains visible. Then the menu ribbon will be exactly in its final resting place and the main page body will be able to continue scrolling upward with no downward jump.