I usually mod back in fast travel for survival mode. It helps with the experience.

Depends on the country and the wealth of the individual.

Some countries respect privacy of the departed, some require active involvement from the estate and the rest don’t care.

Social media is generally left abandoned if no one is around to actively close it down. There are millions, if not billions, of accounts floating around the internet with owners who have since passed away which are being stolen to be used for spreading malware.

However, official papers are generally nullified once a death certificate is issued. Plenty of cases where people mistakenly declared dead had all their stuff blocked off.

Yeah, China does it without masking themselves.