Yeah I have been laid off once, at Fortune 15 company. We got, at least, 2 month of severance pay. And 2 weeks extra for each year with company after first 4 years. It wasn't a tech company, so I always assumed that this is pretty common in mass lay offs.
This is pretty normal in my experience. Having experienced layoffs (never as a target, always from the side) for the last 25 years. There are probably edge cases, but some amount of severance (based on time with the company, typicall), healthcare coverage, bonus acceleration, etc, is all completely normal.
On HN, of course, you're mostly only going to see the edge cases posting, so it's easy to get a distorted view of normal.