Belgium: 20 days plus all legal holidays with extra days if they fall in the weekend. Sick days are practically unlimited, at this moment.

If first line relative dies it's 3 days off, but decent employers would give you a week.

Sick children you can't find care for, is a day off paid at a lower rate by the government.Though with WFH this seems to have changed to doing what you can with full pay from home, if you're an office worker.

Starting in 2024, if I get sick during a holiday, those days off are converted to sick days and I can take those holidays later.

The idea of having to spend holidays if you get ill makes me want to burn down a building. You should try it.