This neither lines up with reality (as in there are defined boundaries as devices are made by people on different teams each operating on their own abstractions) or with the reality we want to see.

Part of the trade-off that large companies accept in being allowed to become mega-players in a space is that to make up for the lack of individual power, the government may step in and make the world better for individuals at the expense of the larger companies by, for instance, mandating freedoms: freedom to repair (especially in the case of cars), freedom to re-sell (that's the first-sale doctrine in case you're curious), and so on.

We're talking about individual freedoms.