I’ve heard of one reported death from Hurricane Ian and the improper use of a gasoline-powered generator.
Here’s a video I put together a few years back to help you understand how to use a generator and do it safely: “Disaster Zone - Hooking Up a Generator Safely.”
A little less detailed version of the above that calls attention to the issue is this five-minute presentation I gave a few years back: “How To Kill Your Husband (and Other Disaster Preparedness tips).”