I remember that for FB there is a "switch" that ends with "/chr" on the URL and that forces the posts to be displayed in untainted chronological order (newer on top). I haven't used FB for at least 5 years so that may have changed. I remember this well though because I had a bookmark on my FF toolbar with that exact URL so avoid the shitty manipulation of FB.

(I still believe that FB is cancer)(only came to read for Silent Bob!!!)