Scroll to the bottom of almost any blog post and you'll find the same five icons: a bird that got rebranded two years ago, a lowercase "f" in a circle, a chain-link for "copy URL," maybe an envelope. Someone built that row once, for the apps that mattered at the time, and it has been quietly lying to every reader since. It doesn't know if you have Twitter — sorry, X — installed. It doesn't know you'd rather send this to yourself on WhatsApp, or drop it in the Notes app, or AirDrop it to the l...