This is correct. Citizens of non EU/Schengen countries or people with no permanent resident ship and not from

• Hongkong
• Indonesia
• South Korea
• Taiwan

I could not find Saudi Arabia on the official list.

are only allowed to enter if they are fully vaccinated. This rules apply for person 12 or older. Children between 6 and 12 which are or can not be vaccinated need a negative test. Children under six need nothing. Here is the official FAQ https://www.bmi.bund.de/SharedDocs/f...irus-faqs.html