So your complaint is essentially "Safari doesn't default enable a bunch of experimental features and doesn't blindly adopt whatever half-assed features Google p

So your complaint is essentially "Safari doesn't default enable a bunch of experimental features and doesn't blindly adopt whatever half-assed features Google pushes". Looking at the CanIUse stats for the features you complained about made me wonder if your whole post is meant to be sarcastic. - the contacts api spec is draft, and can be enabled as an experimental feature in Safari 17 - the file system access api is a Google-sponsored draft and not "fully supported" by any browser; Safari and chrome both support the same thing on mobile: "Origin private file system". - the background sync api is yet another Google-sponsored unofficial draft.