I was thinking of this because in my country there's an institute which determines correct language and therefore many people speak or write their native language incorrectly. Whereas in English there's no central authority which would write the rules.
So when I look at linguistics videos on Youtube and hear descriptivism being the popular opinion, I'm wondering whether it's because that's just how most linguists are or it's the influence of anglophone mindset where nothing is written in stone and they would rather investigate and describe whatever phenomena occurs in the language naturally.