The difference between English, Dutch, and German Wikipedias is also very interesting. I used to never open the Dutch one unless there was a near-zero chance of the English one having any article on the topic at all (like how to make vlaai or idk). It has way fewer articles, has virtually no references for anything, is written more casually by fewer people, and everyone who needs information in the Netherlands speaks English (under 55yo) or German (over 55yo) or both (those in border-nearing retail) so nobody bothers
(Even tinier is the Limburgian dialect that have their own Wikipedia. It seems to mostly be an exercise in how to write this spoken language than to make actually useful articles with unique content. Literally nobody can read that who can't also read Dutch, since it has no spelling or even a dictionary that'd work for more than a few square kilometres. But I digress)
The Germans on the other hand, I've been amazed that there exists, not infrequently, articles in German with more information than in English. It seems like such a shame to me to put all this effort into a niche language, yet it's there. There are well-maintained silos of information out there if you know where to find them!