Opt out of Starlink coverage on iPhone?

There are two separate satellite-related communications paths associated with Apple,kPhone, given the recent announcement.

There is the original out-of-coverage satellite access provided by Apple, and that coverage involves Globalstar.

There is now the recently-announced direct-to-satellite cellular, and that depends on the chosen cellular carrier and cellular plan. That includes the T-Mobile coverage (currently in beta) involving Starlink.

If you don’t want any dealing with SpaceX Starlink, then you’ll want to discuss that with T-Mobile if they’re your carrier, if (when?) the T-Mobile direct-to-satellite beta concludes with general coverage availability. Or discuss that preference with whatever other terrestrial carriers might eventually add Starlink coverage, or with whatever carriers might align with Kuiper*.

The recent announcement around Apple was the addition of Apple iPhone to the T-Mobile beta, as that beta was previously only available to Android devices.

*if and when the Kuiper constellation comes online, and if and when Kuiper then adds direct-to-satellite coverage.