Pulling my hair out of thumbs.db

I understand opus doesn't create thumbs.db, but why is it locking the file and preventing me from deleting it?

I have successfully prevented the file creation on windows 10, but I am testing windows 11 and can't stop the creation.

Sometimes I can delete the file with another computer by leaving that directory, but Just now I had to completely close opus to delete it.

If opus doesn't use it then why is it locking it? File Lock smith says it is Opus that is using it and if I close opus then I can delete it.

Might be a shell extension in the Opus process that opened it. Opus doesn't know anything about those files.