I am not against studying grammar.
Actually, I think it’s very helpful and important in language learning. It helps me get an overview of how my target language works and what to expect as I progress.
For example, Russian grammar isn’t as intuitive or similar to that of other languages.
Its grammar is quite difficult, complex, and… peculiar. Reading through its grammatical rules as an overview can actually be helpful. And that’s the thing, I treat it as an overview. When I encounter a sentence, I can sometimes vaguely recall its rules, which helps me eventually internalize them in a natural way.
I know I won’t learn a language’s grammar by studying grammar rules.
I know that I won’t be able to speak in a fluent way if I’m constantly thinking about grammar rules every time I talk.
Trying to learn grammar by studying grammar can be an unpleasant work, which contributes to the negative reputation grammar has among many people. It often leads people to demonize grammar, seeing it as something that works against us.
For me, it’s more effective to memorize very short phrases and thus internalize how a language works.