Also confirming that you do not have any of these limitations:
From DBT's website:
Some databases limit where and how descriptions can be added to database objects. Those database adapters might not support persist_docs, or might offer only partial support.
Some known issues and limitations of Databricks specifically:
- Column-level comments require
- file_format: delta
- (or another "v2 file format")
- Column-level comments aren't supported for models materialized as views (issue)
