This browser
What this device has recorded
There is no account to log into, so this is simply what is stored against the browser you are using right now. On a different browser or a different phone you would see something else.
Nothing at all. This browser has never recorded anything here.
Delete all of it
Removes the cookie for good. Notes you left on idea pages go with them. There is no account, so this cannot be undone by anybody, including us.
What is stored and why is written out on the privacy page.