In addition to the software download links for the Play Store and App Store, the previous page also includes the option to use this computer to configure Chromecast.
Previously, users were directed to chrome://cast, which enabled the browser to search for Cast devices and direct users to select which device, enter a verification code, name the device, fill out Wi-Fi information, and more.
Unfortunately, after the update, the option to configure Chromecast from your PC has been removed from the settings page.
Chrome://cast can still be called manually in Chrome 71, but from the latest Chromium code submissions, Google has made up its mind to deprecate this feature in Chrome 72.
It is reported that the official version of Chrome 72 for Mac, Windows and Linux platforms will be available in January 2019.
It’s important to note that this change does not affect the ability to serve web and audio and video from Chrome for Mac / Windows / Linux to Chromecast or other supported devices such as Google Home.