getLockedByUser only returns the current user. not other with file open.

[Ofer-Gal]

What version of PnPjs library you are using

4.x

Minor Version Number

4.5.0

Target environment

SharePoint Framework

Additional environment details

Tring to find out if anyone has a certain file open before checkout inside a SPFx webpart authenticating with the context.

Question/Request

The code

     const file: IFile = await projWeb.getFileByServerRelativePath("/teams/3000.005/DPCDocuments/Turn OFF OneDrive Syncing.docx")
        const o:ISiteUserProps = await file.getLockedByUser();
        if (o)    console.log(o.Title, o.LoginName);

shows my name and login when I am the one with the file open.
When someone else has the file open, o== null
Is there a way to make it aware of other users with the file open?
Thank you