Germany worked very hard over the past decades to lose all credibility in the Middle East. From tiptoeing around the Iraq invasion, over empty calls and threats during the earlier stages of the Syrian War, from making big announcements to uphold the JCPOA after the US broke the agreement and then just falling into US line until now where Germany remains unwilling to acknowledge the possibility of Israeli war crimes and continueing to support Israel "beyond all questions" as Scholz said.
Nobody in the Middle East takes Germany seriously and everybody knows, that in the end Germany will fall in line with whatever the US says, so any agreements made with Germany could just as well be made with the US instead.