To reproduce, with Nautilus (GNOME's file manager) and another Linux computer ("computer A") that has SSHd running:

1. On computer A, in ~/Documents, open a saved "foo.odt" with LibreOffice Writer

2. On computer B, use Nautilus' built-in SFTP feature (based on GVFS) to visit:
   sftp://username@computerA:22/home/username/Documents/

   …and open foo.odt

3. You get the standard "Document in use" warning dialog with the choices to "Open Read-Only", with the extra "Notify" choice to be notified when the document's file lock is freed. Enable "Notify" and open the document read-only.

4. On computer A, close the document.

5. Wait in front of computer B: nothing happens, even after 1 minute, even 15 mins.

…yet the fact that it knew the file was locked in the first place means it can actually read the lock file, so something seems broken in the way it monitors the lock file afterwards.

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Tested with:

Version: 25.2.1.2 (X86_64) / LibreOffice Community
Build ID: d3abf4aee5fd705e4a92bba33a32f40bc4e56f49
CPU threads: 8; OS: Linux 6.12; UI render: default; VCL: gtk3
Locale: en-US (en_US.UTF-8); UI: en-US
Flatpak
Calc: threaded

…running on Fedora 41 on both sides.