As per release notes, Microsoft has re-iterated their decision and below is info mentioned under “Test tools” section.

OSS UI test tools such as Selenium and Appium have gained momentum and have a strong community backing. Because these frameworks have become industry standards, we deprecated Coded UI test for automated UI-driven functional testing. Visual Studio 2019 will be the final version of Visual Studio with Coded UI test features. We recommend using Selenium for testing web-applications and Appium with WinAppDriver for testing desktop and UWP apps.

Visual Studio 2019 will be the last version of Visual Studio with load test features. For customers requiring load testing tools, we recommend using alternate load testing tools such as Apache JMeter, Akamai CloudTest, Blazemeter.

Ref: https://docs.microsoft.com/en-us/visualstudio/releases/2019/release-notes-preview#test-tools