Other countries have a similar system. Canada for example has the Start-up Visa, which requires about C$225k investment, or the Quebec one (now suspended) which required C$1.25m over five years.

From what I can tell, the Hungarian requires somewhere between 200 and 300k EUR. This is not something that is affordable or easy to attain for the average lemmy poster. But again, this also does not guarantee citizenship, just residency.

In short, requesting a work or study visa and then trying for the citizenship test five years later, after having learned the language, is probably a much more attainable way. But still far from the easiest country to emigrate to.