Problem is those companies are like Nest, who made good products with love and then sold themselves to Google who then turned most Nest products into bargain-basement offerings with half the features. So the only real fix is FOSS, since everything else can be bought and killed. (FOSS can be too, but it's harder.)
But at least it leaves room for other companies in some situations. What’s really sad is when there’s something that could only be done by Apple or Google, but it’s too small for either of them to actually do it.