That's outright false.
And outside of the actual devices, the whole software ecosystem very much uses the C extension.
Qualcomm simply wants to break the standard to make money, that literally all it is.
> Qualcomm wants to remove it because it is actively harmful for fast implementations
Funny how not a single company other then Qualcomm argues this. Not Ventara, not Si-Five, not Esperanto, not Tenstorrent, non of the companies form China.
Its almost, almost as if it not that big of a deal and Qualcomm simply want to same money and reuse ARM IP.
> The solution to fragmentation is to just disable the C extension everywhere, but SiFive doesn't want to hear that.
Literally nobody except Qualcomm wants to hear it. It wasn't even a discussion before Qualcomm. All the other companies had plenty of opportunity to bring up issues in all the working groups, and nobody did. Literally not a single company gave a talk, talking about how the C extension was holding them back. In fact most of them were saying the opposite.