[KDE] LibreOffice "Save As" fails on SMB shares - "Object not accessible"

’m running Fedora 43 (KDE Plasma) on a workstation and hitting a workflow wall with LibreOffice and SMB shares .

The Setup:

  • I access my NAS via Dolphin (Network > SMB).

  • I open .odt / .docx files directly from Dolphin.

  • kio-fuse is installed (dnf list installed kio-fuse confirms this).

The Issue:
I can open and edit existing files fine. However, if I try to “Save As” or save a new document directly to the SMB share, I get this error:

“Error saving the document: Object not accessible. The object cannot be accessed due to insufficient user rights.”

If I try to save an existing file, it sometimes says: “This operation is not supported on this operating system.”

What I’m looking for:
I know I could map the drive manually via /etc/fstab or use generic GVFS mounts, but that seems excessive for a modern workstation workflow. Since kio-fuse is supposed to bridge the gap between Dolphin (KIO) and non-KDE apps like LibreOffice, shouldn’t this work out of the box?

Has anyone on Fedora KDE solved this cleanly without resorting to static fstab mounts or 3rd party tools like Smb4k?

Thanks.