As someone whose elderly mom was targeted by people who knew her in real life as well as by strangers through online means (she regularly downloaded viruses; my cybersecurity son even found spyware on her laptop!)...I keep wondering if the perp(s) were after more than just the typical valuables like cash on hand and jewelry. Is it possible that they were after bigger things like access to her bank accounts?
Some of the reasons this comes to mind: 41 minutes (longer than a typical home invasion, which could have bought time to look through files), the adult protective services business card stuck in the door, dealings with bitcoin (if the ransom notes are legit and tied to the perps), bungling lantana man's efforts (might be cyber savvy but not burglary savvy), no mention of valuables stolen (there might have been, but LE has said her wallet and other things were left behind).
My mom would keep a paper list of her passwords. She was old school, no matter how much we told her it was dangerous to do that.
JMO