All Windows screen readers with any significant user base have supported Chromium and Firefox for a while now. The old EdgeHTML engine didn't work so well with

All Windows screen readers with any significant user base have supported Chromium and Firefox for a while now. The old EdgeHTML engine didn't work so well with third-party Windows screen readers, so some blind users may have held onto IE 11 because of that. But any Windows screen reader that works with Chrome also works with the Chromium-based Edge. And note that the WebAIM survey you released was from before the Chromium-based Edge started being pushed to the broader Windows user base. Bottom line: Web developers should not feel obligated to keep supporting IE 11 for the sake of screen reader users.