I found this excerpt in an (automatically translated) article at Kronen Zeitung (Austrian):

https://www.krone.at/3386668

In response to a question from journalists at the Federal Press Conference on Wednesday, government spokesperson Steffen Hebestreit explained that Germany is "fundamentally" a supporter of the International Criminal Court. "And that remains the case. We abide by the law," said Hebestreit, indicating that the possibility of Netanyahu being arrested in the event of a case cannot be ruled out. However, the spokesperson spoke of a "hypothetical question".