Privacy in Spain is not a thing. I recently stayed in a Hotel in Spain and they want to scan your ID (illegal) to send the details to the police (it's a law). But nobody cares. Tourist happily hand over their IDs and wait 2 hrs to get it back. So better don't use Hotel WiFi's, even if you connect via a VPN. Better use WiFi's at a restaurant or bar, waiters usually tell you the password, most of the time it's 12345678 or the name of the bar 😉  .