To enter Italy I had to fill in a 3 page paper document (A 'declaration')
Border controls in Japan consist of giving every person who comes in a rapid test for COVID-19, and holding them in quarantine until they get a negative result. Or putting them in a hospital if it is positive. They have intercepted 342 people at ports of entry doing this.
They can do that because the whole country is shut down, so there are very few people coming into international airports. You can only fly in if you are a Japanese citizen. Even people married to a Japanese citizens, or having children, spouse or families there have been barred from entry. That's scandalous.