It's my impression that the WebGPU spec design team went to extreme lengths to accommodate Apple's wishes, and Apple in turn does not even support WebGPU in Safari. Why not express vitriol? Apple does not seem to act in good faith.
Confirmed my M1 iPad Pro iOS 18.4.1 also doesn’t have it enabled. Took a bit of digging in the settings app to discover where to enable feature flags too, confirmed it’s off.
It’s disabled still on my iPhone on iOS 18.4.1. Either it was enabled specifically on 18.2, and then disabled, or you enabled it manually. (Or some other weird thing, like it’s only enabled on iPhone Pros.)
That's kind of the point, Chrome shipped it across multiple platforms two years ago, while Safari still has no timeframe despite having a much narrower set of APIs and hardware to support. Firefox at least has the excuse of needing broad compatibility like Chrome but with a fraction of the development resources. Apple are just dragging their feet.
> That's kind of the point, Chrome shipped it across multiple platforms two years ago
Chrome ships a lot of things. Even now WebGPU is marked as experimental technology on MDN.
WebGPU didn't even become a Candidate Recommendation until December 2024 (half a year ago)
> Apple are just dragging their feet.
Or they are not in any rush to implement APIs that haven't reached consensus, haven't passed reviews, are subject to change etc. Chrome has very very cavalier attitude towards shipping APIs.