How many people out there have attackers doing individualized research to identify services on their home LAN so they can chain a network attack with CVEs in their self-hosted service?

Everyone, now that you can just toss the work at an LLM.

Where are you seeing this? LLMs make it easier to do bulk data analysis / scale attack patterns, but I've not seen anything to suggest they're incentivizing people to do OSINT against random individuals to fire off targeted attacks on home LANs.

The juice isn't really worth the squeeze for the token spend any more than it was worth the human energy.