* Time Machine will always fetch them if needed
* third-party tools will only be able to if you disable optimize. https://bombich.com/kb/ccc6/limitations-online-only-placeholder-files
Note that Finder apparently *will* fetch them for you if you copy the entire dir, so maybe you can trigger that via AppleScript?
@noleli @uliwitness also possibly of interest: https://eclecticlight.co/2022/02/21/can-you-back-up-icloud-documents/
The original server operated by the Mastodon gGmbH non-profit