Yes I have from someone who boarded Discovery last week! Also next cruise neither will Adventure. Whether Saga are experimenting or not and would reintroduce the showing of passes you're guess is as good as mine.However if one has a NHS app Covid vac certs are in it Saga guests are well vaccinated anyway and I'm not going to get wound up by going back in time with masks,distances unless instructed to do so. We have to move one and as covid is no longer a pandemic if we don't like new procedures don't go