For Visual Studio 2019, you now can get the SSIS designer extension from the VS market place. We've discontinued the SSDT standalone installer for Visual Studio 2019.

How Do I Know If Ssdt Is Installed In Visual Studio 2019? The Control Panel Programs Programs and Features is one place where you can check your current SSDT release.

Install SQL Server 2019+ with SSIS and SSRS features. Install Visual Studio 2022 + SQL Server Data Tools. Add Microsoft Reporting Services Projects extension via VS installer (Modify → Individual ...