First, there are some "protected classes" of resigning that allow you to be eligible for unemployment right after you resign, for example: moving to follow your spouse, resigning less than 3 months after having been laid off, going back to study or... creating a company!![1] :).

Second, you are entitled to unemployment benefits even if you resign without "a good reason". The issue is that you can only request your benefits 4 months after having resigned. This leads to many people believing that you just do not get anything if you resign; because who wants to eat the 4 months of no income?

This 4 months waiting period is not advertised at all, and my complotist self believes it might be on purpose; if you don't know about it and don't request it, that's less money for the government to spend :^).

[1] Conditions apply (having worked uninterrupted for the last 5 years)