Unlike with some filing agents, it is completely your choice on whether to delegate or not to Workiva. By choosing to not delegate to Workiva, you will be required by EDGAR Next to create and manage your own Filer API Tokens using the Technical Administrator user role, and in the Test and Live Filing steps, you will select or provide both a valid Filer API Token and an authorized individual’s User Token. These tokens, which are simply specially encoded, are what are replacing the SEC password

Even if you have chosen to delegate to Workiva, you can always file using your own credentials (tokens).  Delegation simply expands the filing possibilities - you can continue to use your own Filer API Token and User Token, only your User Token, or use the “File With Workiva” feature and supply no tokens.