For those wondering what supplements are on each disc, I always use this website to get the titles and lengths (durations). Here is a link to every supplement for this box set (standard U.S. 4K and Blu-Ray sets both apply here), which disc it's on, what the supplement's called and what their durations are. It's comprehensive. Scroll to the bottom of the page to find the list. Please note: All supplemental extras are 1080, so they are the same on both the BR and 4K sets.
https://www.blu-ray.com/movies/Stranger ... 37/#Review