I can see that the scientific method works well in producing knowledge. Because we can do something with it. Like fly to the moon, cure diseases, build nuclear weapons.
Philosophy however claims usually to also find knowledge. There are several methods, but none of them seems to have any evidence of working in any other circumstances than everyday heuristics. On the contrary, the lack of convergence in opinion seems to indicate that they do not work well.
There are plenty of takes what math "is" philosophically, and there are so many opponents and overcomers of Popper.
I agree that philosophy is nice to have, a playground for ideas, a collection of possibilities of systems of concepts. But I fail to see what points to it being a source of knowledge.
It's one thing to state "These systems are possible", and another to state "this system is the real one", specifically in ethics.