Hey @Pigio62Italy, thanks for reaching out to the Dropbox Community and happy Monday!
When you go to our website using a browser on your computer, the sign-in box should look like this:
You can choose whether to sign in with Google, Apple or your Dropbox email.
Is that not what you see on your end? If so, can you send me a screenshot of what you see?
Just make sure not to include any personal info on the screenshot.
Thanks!