//I don’t think there a unified “market” here.
You mean like the ASTS/Vodafone partnership that birthed the Satellite Connect Europe?
https://www.vodafone.com/news/newsroom/technology/satellite-...
https://www.vodafone.com/news/newsroom/technology/vodafone-a...
Or like the US JV where they provide the infra for AT&T, T-Mobile, and Verizon.
https://www.businesswire.com/news/home/20260513491108/en/AST...
//Phones don’t have reliably clear views of the sky and have much weaker RF capabilities.
And they appear to have circumvented that, although ease of scaling remains to be seen.
https://www.reddit.com/r/ASTSpaceMobile/comments/1k6whtf/rak...
My claim is that these are not the same market as the traditional Starlink service.
They didn't circumvent phone antennas being largely omnidirectional (unlike VSAT or phased arrays, which are highly directional) and as a result having much lower gain, they just work with it, just like Iridium, Globalstar, Inmarsat, Thuraya, and all the other early players in what's now called "direct to device".
The market is as bimodal as ever on the device side: On one side, you have small, battery-powered, (mostly) omnidirectional device antenna, portable devices that mainly operate in the L-band, which works much better in these conditions; on the other side, you have highly sophisticated, steered, high power (dozens of watts) antenna arrays operating in the Ku or Ka band.
On the satellite side, both can be served by the same satellites, as has been the case for e.g. Inmarsat's I-6 series and Starlink's direct-to-cell capable satellites (I believe these all include Ku-band coverage as well).