score:2
Testing is random (if you arrive from some countries, like the UK). I cannot answer for the first question.
But the second question: No: you should social distancing for the fist 24hours (probably less). The "advised" is more strict that it seems. Please respect the social rules of the hosting country!
If you develop symptoms, self-distancing is not enough. But this is a basic rule you should apply everywhere. I'm scared of your question.