Linear design with scroll bar can often be preferred.
Text with different fonts/colors seems to be what I focus on first.
What used to be called short term memory, is now considered working memory. It is now considered, that in addition to holding information in memory, we are also manipulating and changing our mental models. The best way to approach this is to allow the user to not have to hold too much info in working memory.
In the last few examples, it seems like the companies have focused on putting less text on a single page.