I think that is seeing things from the wrong end, the question can ever only be "how should people deal with death?"

If you are anything like me, you probably attended less than a handful of funerals until your fourties, and then, as part of growing "really" up, making sure the dark respectful clothes are always ready became a thing.

The problem is we built the internet before we turned 40, so we never thought about how deaths figured into it.

I still think the two most important aspects are A) Ensure access. (ie: write down crucial passwords) and B) Making sure the news gets round.

Failing A) may leave practical and economical heart-burn.

Failing B) will make the people you leave behind much more uncomfortable and sad than you would want.

And, of course: Make sure to tell people how much you appreciate them, while both you and they still are.