You seem to forget that some businesses exist before VC funding.

Arduino started out as an open-source project, with further development funded by the sale of physical hardware. They did not need tens of millions of VC funding for that, and they independently developed the "cool stuff" people here care about. Unlike most startups seen here, they were not selling stuff at a loss in the hope of conquering the world and somewhere along the way hopefully figuring out a way to make money. Arduino could've probably continued doing this for decades, but instead they stagnated and were leapfrogged by their competitors.

They only need to raise VC funding in order to expand into new markets because they want to pivot towards "professional engineers with enterprise-scale applications".