How can I disable file locking on Windows 10 and LO 5.4

How can I disable file locking on Windows 10 and LO 5.4?

I see some posts about SAL_ENABLE_FILE_LOCKING but cannot find a file on Windows 10 with these contents.

What are the file name (and extension) and folder to change?

The filelocking settings are accessible via the expert configuration under ‘Advanced’ options. Search for ‘lock’ there.
(Please consider if you are an expert who can take the responsibilty for switching off a feature that was surely created for good reasons - and by experts.)