I do this when ingesting via PM (via adding an xmp file);
Add a title to ALL raw files
But also add a little incremental number to the "scene" code.
PM will then rename the file to;
title_01.cr3
title_02.cr3
Then in lightroom, I can do whatever I want to file names. Title_01_hdr.dng or title_01_edit_edit_edit.psd. or randomeditname_outsource033.TIFF...
Doesn't matter.
In the end lightroom and photomechanic will always use "title" and "scene" to export and rename so I'll always be issuing "title_01.jpg" to clients. I don't have to worry what the heck the filename is called on the mac during editing. The images will always have their own unique numner too thanks to the scene code.
I found the scene code best because most apps, including capture one, use scene.
I just wish there was an option in PM to be able to overwrite files when exporting. Very annoying to end up with "title_01.jpg, title_01A.jpg"
Is this what you mean OP?