[scottfr]

Epic is not a customer of Apple.

Many of Apple's customers are also customers of Epic.

Apple is trying to prevent those shared customers from accessing Epic.

[madsbuch]

I think very few developers wish to be customers of Apple. But Apple gatekeeps the platform developers need to publish on.

It is this relations that is the core of DMA, and which DMA seeks to change.

[Seanambers]

They do not need, they want and they don't want to pay Apple.

[Retric]

You can call Apple a customer or supplier of Epic, but it's just semantics they do have a business relationship.

The deeper point is companies get rid of litigious business partners whenever possible. It's one reason why you end up regulating utilities, nobody wants the electric company to have excessive control over the local economy. Where exactly digital platforms sit on this spectrum is probably a question for legislators not the courts.