I was moreso referring to their alphabet and pronounciations but a lot of them such as German have a hefty amount of Latin terms which got incorporated. I doubt many Germans these days would understand original Germanic.
They do have their own roots but you get a head start in Europe by pronouncing Latin words in whatever regional accent is availble. Polish and Norwegian likely less but OP is still at a beginner level for those.
But for example adding Japanese, Chinese or Arabic adds a whole new alphabet and experience where there is virtually no Latin base to start from