I use Gunk engine cleaner for the chain after I soak it for a while in mineral spirits. I suspect there is some film left. I don't think the film will interfere with grease or any other lube. You could rinse the parts with alcohol. Brake cleaner will work too, but I'd do it outside because of the fumes.

After the water rinse, I use a heat gun to dry the chain quickly to prevent rust.

Al