Apple is at a scale in smartphone dominance that they're anticompetitive.
There are only two vendors. They control everything about one of the most essential functional pieces of modern society.
A smartphone is essential. Apple and Google tax 30%, control when and how software can be deployed, control browser tech (Apple), prevent web downloads of executable software (Apple) or scare and confuse you about it (Google). They control the payment rails and increasingly enforce using their identity and customer management, so they can sink more claws into business and innovation. They're partnering with governments to be authoritative identify providers. They're usurping payment rails to become the entire payment ecosystem of the future.
The devices are user unfriendly. Can't repair them, can't use third party components, can't replace the battery. Unofficial pieces break core features due to unnecessary cryptographic locks. Updates obsolete old hardware.
Nevermind the petty bullshit about green and blue bubbles giving children (and even adults) fear about their image and reputation. Being bullied for not buying the latest and greatest.
This is scary shit and we're letting them do this.
Nevermind all the fluff of them owning movie studios and music and the arts to keep eyeballs locked.
Car companies wish they had it this good. They'd love to charge you for third party accessories, or to charge McDonalds a fee every time they drive you there. That's essentially the deal Apple and Google are getting.
This is all at once worse than Standard Oil, and comes with heavy Orwellian vibes.
We need more than two vendors, and we need different companies to own different parts of the stack. As it stands, these two companies own everyone and everything these people touch.