For those of you that have been working on an older version of SSIS/SQL Server (2014-2016, something like that), the BI components (SSIS/SSAS/SSRS) are now extensions in Visual Studio. SQL Server Data Tools (SSDT) is no longer available as a separate download.
So you’ll need a full-blown version of Visual Studio (make sure you only install the workflows you actually need). The good news is that you can use the community edition of VS if you’re just using it for BI development. Anyway, install VS 2022 on your machine and download the SSIS extension here.
Read on for the full installation process and a couple of warnings.