Science is a hugely important subset of epistemology, the study of how we know things. Let me be blunt: you are profoundly ignorant on the history and philosophy of science. I don't expect you to thank me, but here is some reading so you can decrease your ignorance: https://plato.stanford.edu/entries/scientific-method/
Your bluntness and link-dumping will not hide the fact that you make no sense. Science is not a subset of epistemology… epistemology, among other subjects, studies the links between science and truth.
The scientific method is wonderful, but to call it a philosophical system is a misunderstanding on what philosophy and/or science is/are.
It seems likely that you have never studied either if that's your belief.
There are other arguments, but if you confuse a method and a system, you clearly don't know what you're speaking about.
Science is a hugely important subset of epistemology, the study of how we know things. Let me be blunt: you are profoundly ignorant on the history and philosophy of science. I don't expect you to thank me, but here is some reading so you can decrease your ignorance: https://plato.stanford.edu/entries/scientific-method/
Your bluntness and link-dumping will not hide the fact that you make no sense. Science is not a subset of epistemology… epistemology, among other subjects, studies the links between science and truth.