What are the options to share access to form and it's submissions?

Bring Back Sub User Accounts for Non Enterprise Accounts.

I think you should reconsider allowing Non Enterprise account to have an additional user account.

They way you have structured now forces a user to share his own credentials.

That is not good.

Hello,

Unfortunately, sub users feature is only available to enterprise users. But, I would like to mention other options to share access to your forms that do not require sharing your password.

If you need to allow other user to edit your form, you could create a collaboration link: Understanding-Form-Collaboration

In case you need to share form's submissions page, please refer to this guide: How-to-Share-Form-s-Submissions-Page

We will gladly assist if you need more help.