All of the features of IDQ will be in CDQ at some point this year.
Is there a particular feature you are looking for.
You can refer Support article which will help you answer all your basic queries regarding Cloud Data Quality.
This article also has few points explaining advantages of CDQ over traditional DQ platform.
Hope this helps!
You can also refer to the below Cloud Data quality recent guide to get an understanding of the recent Data quality offerings on the cloud::
Let us know if the suggested articles have helped you to resolve your queries?