Does anyone have any clue?

My best guess would be some relatively passive notification stealing focus.

As reddeadhead mentioned, there’s specific “don’t steal focus” settings. I’ve had good luck with them.

Isn’t project Gutenberg just for older classic books(not that there’s anything wrong with that)?

Oh, yes. I’m most cases, really old books.

Where do you get books for the Kindle if not at Amazon?

• BAEN sells eBooks directly.
• Libby has various options to check out eBooks from local libraries.
• Project Gutenberg has free and DRM free eBooks for most books in the public domain. A huge number of classics are available this way.

When I look for a specific book, I usually find that simply searching for "BOOK NAME purchase DRM free” results in plenty of results.

Sadly, I find it dramatically easier to find a free DRM free copy of most eBooks than to find somewhere to legally purchase a paid licensed DRM-free copy.

As a flawless upstanding citizen, I never partake of such amazing convenience, myself, of course.

Jeff Bezos never smashed the window on my car to steal my speakers,

True.

he doesnt come out vandalising public transport or parks and he isnt the reason my wife doesnt feel safe walking around at night.

If we could even comprehend the scale of his unpaid taxes, or their impact on our parks, we might discuss this at length…

The surprisingly deep copy of Balatro in “Dave the Diver” is pretty good.