I think I create one of this when I tried to import contact and now I can’t delete it from the account manager or from the contact App, any help is welcome
The Google account type with the blue icon uses microG in order to access an account. The second Google account type redirects to the Google-Account-Manager website.
The “Delete Account” functionality is located in different locations for different account types.
Since I did not create such a Google-Account, I can not test this. But for example:
Signal account: Burger-Icon (three dots in top-right corner) -> Remove Account
WebDAV or /e/ account: Account settings -> Burger-Icon (three dots in top-right corner) -> Delete Account
If you find no way to remove the account within the account manager, then I would consider this as a bug and recommend to create a bugreport for this problem. Gitlab is better suited to track problems than this forum.