The only way I can find to move workflow jobs (schedules) to another workspace is:-

1) Create a job in the databricks UI (Workflows -> Jobs -> Create Job)

2) Copy the json definition ("...", View JSON, Create, Copy)

3) Save the json locally or in the Git Repo

4) Create the job in a different workspace (amending the cluster id) with the Databricks CLI command "databricks jobs create --json-file ***.json".

Is this the only way?