Received our email this morning. Sailing on Moon out of Stockholm 28 June for Northern Europe. The email stated there would NOT be pier side testing. This is copied from email:-
Please note: Silversea will NOT be providing pier-side testing for embarking guests; as such, it is imperative that you arrive to the pier with your individual negative test result. If you arrive for embarkation without a valid negative test result, you will be denied boarding.
I'm really surprised some enterprising lab hasn't set up shop at pier side. Im sure I will easily find a place in Stockholm to do test, but it could be made easier, even if guests paid for test before boarding.