For today's serendipity trivia :
Downloading lots of these meant I had bunches of thrillers and crime novels and horror stories come up in my recommendations.
then to switch up downloaded a bunch of favorite public domain stuff. Apparently that completely wrongfooted Amazon's recommendation algorithm so that I then had one thing and one thing only on my list (I have pretty much added everything I have read relatively recently or have as they come up)
And it was
Farmer One, by Christian Cantrell