How to sync specific folders in Google Drive for Desktop?

Please note:
I am not talking about Google’s deprecated “Backup and Sync” application nor “Google Drive File Stream”. This question pertains to Google’s new Drive for Desktop.

How do I only sync specific folders? On the settings page it only allows me to select between Streaming and Mirroring.
Drive for Desktop preferences screen

Google claims that syncing specific folders is possible in Drive for Desktop but the feature seems to be missing:
Drive for Desktop features list