What is GFM in Finance?

Could you please elaborate on the term "GFM" in the context of finance? I'm curious to understand what it stands for, what it represents, and how it's relevant in the world of finance and cryptocurrency. Is it a specific investment strategy, a regulatory framework, or perhaps a technological advancement that's reshaping the financial landscape? I'm looking forward to gaining a clearer understanding of this acronym and its significance in the industry.