What happened if some government agency were to order both Obscura and Mullvad to log a certain user or certain activities? Wouldn't it be possible to combine those logs? If it isn't: would that change if Obscura was ordered to also use a separate Mullvad account for a specific user/IP?
Governments do not even need any of the providers to comply, they can access global NetFlow data. This is conveniently not discussed by any commercial VPN provider.
https://www.ivpn.net/privacy-guides/isp-netflow-surveillance...