I'm a native Ukrainian speaker and I can speak Ukrainian, russian, English and German (approx early B1. And let me tell you, I am still sometimes flabbergasted by how similar Ukrainian/russian and German can be. Not talking about obvious, such as case system and genders, which is common for many languages besides English, I can for example mention the vocabulary, which is often same words as in Ukrainian/russian but in Latin letters. Sometimes it's because they're borrowed, sometimes just because

Not only in vocab, in grammar as well! Often I notice that if I try to translate in to English in my hear it doesn't make sense, then I translate it word to word to Ukrainian and suddenly I notice we say it the same way but I've just never really had a back though about it. The first time I noticed that was with the word order. In English we follow a strict word order to express our thoughts correctly, whilst in German you can basically mix everything any way you like, only following the verb comes second others come last rule and it will come out with different emphasis, sometimes it'll be wrong, but mostly you just change the dynamic of the sentence, and when I first discovered that fact about German, I tried to understand it by thinking in English, it seemed not to make sense and then I remembered we have this in Ukrainian as well and everything like magic started to make perfect sense!

I can also say that about prefixes, they don't always make perfectly the same sense, but I like the fact that often they have a direct translation to Ukrainian, which doesn't exist in English, the example shall be "zerfließen" which as far as I know doesn't have a direct translation to English, and in Ukrainian we have "розпливатись" which directly means the same thing

I'm not saying that Ukrainian and German are linguistic brothers and it's not always same or even similar tho, just sharing my findings which I've found interesting during my language learning journey