Most of my reference is Japan and South Korea, yes. You're relatively hard to fire there unless you genuinely in the red as a company. They have their own loopholes around this, but you can't just do forever layoffs for no reason like the US.

My much less researched understanding of China is that there's much less protections in terms of well-being (no federal minimum wage, absurd work hours as standard, etc), but China also comes down much harder (at least, compared to the US) on companies that violate laws. Actual punishments will depend on loyalty, but companies take care to avoid that situation to begin with.

I can't speak at all for the rest of SEA.