Why did the FBI care? They cared enough to pressure Facebook into censoring the story.
Who was "the Big Guy" who an email on Hunter's authenticated laptop said was having 10% of a series of corrupt payments held for him by "H?"
I'll lay a thousand to one odds, that the FBI never asked Hunter that question.
They did not pressure Facebook. They made social media aware of the fact that the Russians were trying to pass false information using social media. We know the big guy is not Joe Biden. He has released his tax returns so we know where Joe Biden's money came from. None of it came from any business dealings with Hunter Biden.