Blockchain record details?

Hi there. I am trying to understand better:

1. What exactly is written into the blockchain when cold wallet is created? Probably time, date, cold wallet address? By checking the blockchain can you tell from which country/location is holder at? Type of the platform (phone, PC) he used to create a wallet? I know there is no name or e-mail address.

2. When moving crypto to/from cold wallet is it possible to tap into the mobile phone to see when and which transactions took place?

3. By checking a specific blockchain location/transaction is quantity and list of crypto sitting there visible to the third party?