Oh hey, it’s cool to meet a fellow editor out in the wild, especially someone from another language. I will say for what it’s worth that I so far haven’t run into what I perceive as an anti-vegan bias on the English Wikipedia. Simultaneously, though, I often avoid editing articles specifically about veganism because I recognize I could get heated over what for me is a deeply held ethical belief, so I may just not be where it is if it does exist.