No problem. Whether a file is visible by default in File Explorer depends on FILE_ATTRIBUTE_HIDDEN (attribute in SMB2 GetInfo return). Samba sets FILE_ATTRIBUTE_HIDDEN in a variety of circumstances depending on configuration. For instance, if "hide dot files" is set (default), then Unix hidden files (ones beginning with dot ".") have FILE_ATTRIBUTE_HIDDEN. If "store dos attributes" is set (also a default), the files will be additionally marked hidden if an SMB client has explicitly set the "hidden" attribute". There are also some legacy non-default behaviors that I won't go into.