[Bug]: macOS VFS Client attempts to download all files from server when using disk space calculators

[starcraft66]

⚠️ Before submitting, please verify the following: ⚠️

• This is a bug, not a question or a configuration issue.
• This issue is not already reported on Github (I've searched it).
• Nextcloud Server and Desktop Client are up to date. See Server Maintenance and Release Schedule and Desktop Releases for supported versions.
• I agree to follow Nextcloud's Code of Conduct

Bug description

This problem specifically applies to the macOS VFS provider build.
When running a disk space calculation program like GrandPerspective on my mac, it starts scanning the disk and then screeches to a halt when reading ~/Library/CloudStorage/[the nextcloud folder], presumably because simply probing files for their size appears to trigger a download of the entire file. I do not see this behaviour while indexing the size of other cloud storage providers which I have installed on my computer such as Google Drive and OneDrive which leads me to believe something funky is going on with Nextcloud Client VFS

Steps to reproduce

1. Install Nextcloud Client VFS build
2. Install GrandPerspective
3. Start scanning your Macintosh HD with GrandPerspective

Expected behavior

The scan is fast and doesn't cause Nextcloud to download anything.

Which files are affected by this bug

All Files

Operating system

Mac OS

Which version of the operating system you are running.

14.5

Package

Other

Nextcloud Server version

29.0.3

Nextcloud Desktop Client version

3.13.0 VFS

Is this bug present after an update or on a fresh install?

Updated from a minor version (ex. 3.4.2 to 3.4.4)

Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

Are you using an external user-backend?

• Default internal user-backend
• LDAP/ Active Directory
• SSO - SAML
• Other

Nextcloud Server logs

No response

Additional info

No response

[marcotrevisan]

Just for the records, "du -h" works as expected, i.e. it will touch locally available data only and count the size of materialized files, without causing massive downloads.