You should reboot to a boot menu (which is quite hard to read on a HiDPI display). Choose Y Ubuntu (it’s the default option, with Windows Boot Manager below it if you installed alongside Windows) and in a few seconds, you are greeted with a login screen. Enter your password and you’re presented with a prompt about sending information to Canonical. Unlike certain other OSes, Ubuntu cares about your privacy. Any telemetry information is not linked in any way to your machine or identity. It’s easy to opt out of sending anything, but if you want Canonical get some insight into how Ubuntu is used or how it’s breaking, say Yes. You can even view the first report before it’s sent to get a handle on what kind of metrics are divulged.
Next you’re asked if you want to enable Location Services, which allows apps to guess where you are based on your IP address, GPS signal and nearby Wi-Fi/ Bluetooth devices. This was done using the privacyfriendly Mozilla Location Service, but in March it was announced that this service is shutting its doors to non-Mozilla entities, and at the time of writing, it’s unclear how Ubuntu plans to mitigate this. The most likely scenario is that this will reduce to a simple IP-based lookup, but we won’t speculate. If you object to being located, say No, then say hello to your fresh new Ubuntu desktop. A desktop that, but for an installation icon, is indiscernible from the live environment.