Yes we could have more open standards, but the cartesian product of every integration eventually doesn't scale. What Microsoft did with Windows in this regard in the PC ecosystem is actually quite phenomenal
But I know my Airpods will integrate seamlessly with my iPhone, which integrates seamlessly with my Apple Watch, etc in a way that's clearly very intentional, works, and saves endless headaches. I also know that there's entire companies going out of business because a company like Apple will gobble up prominent accessory markets.