Disable the upload data UI
As a workspace admin, you can manage your users’ ability to upload data using the upload data UI. This setting applies to the Data Science & Engineering, Databricks Machine Learning, and Databricks SQL personas.
Go to the admin settings page.
Click the Workspace Settings tab.
In the Advanced section, click the Upload data using the UI toggle.
This setting does not control programmatic access to the Databricks Filesystem, for example through the DBFS command-line interface.