Oh :-( Every time a cool little company gets VC funding, you know that the free and opensource projects will dry up, and before long they'll be making premium high end products and suing anyone who tries to compete.
I think you got it all wrong. VC funding makes things cool because they could afford to loose money and make product better. Enshittification starts when they stop receive VC funding like reddit or docker. Reddit was founded 18 years ago and for the first 10 years it was good because they don't have any pressure to make money.
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".