Even if the operation view is shared publicly, the data will also need to be shared to Everyone as well.
You can enable public access by clicking Update Sharing (from the Share tab in Operations Dashboard desktop) or you can manually update the sharing capabilities from each item in the org's content page.
Keep in mind, if you are not the owner of an item, you cannot change it's sharing capabilities.
I hope this helps!
But the client need to make the operation dashboard secured, It has some private data, so what happened now, The user opens the operational dashbaord but it asking for user name and password, and the user already add them on our HUB site, so we need to make single sign on, So my question is if we can add the user name and password to the URL to bypass the username and password,