Hi @Stefan Hoffmann ,
With SSMS 16.x, an earlier version of the SqlServer module is included with SQL Server Management Studio (SSMS), so yes it's probably by design.
You can download the SQL PowerShell module from here:
https://www.powershellgallery.com/packages/Sqlserver/21.1.18229
For more information see:
Install the SQL Server PowerShell module
https://learn.microsoft.com/en-us/sql/powershell/download-sql-server-ps-module?view=sql-server-ver15
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Best regards,
Leon