Are you building a app or a modern .NET Core/6/8 app? Have you already installed a DB2 client on your machine?
Key features include:
You can find the official VSAI installers within the IBM Db2 Fix Packs by version page. For specific versions, refer to these direct IBM support resources: ibm database add-ins for visual studio 2022 download
If you cannot use the marketplace, search IBM Fix Central for “IBM Data Server Client Version 11.5” and select the component labeled “Database Add-Ins for Visual Studio 2022” . Are you building a app or a modern