We were on the Riviera cruise Barcelona to Lisbon - the ship was fully booked.
What I can say after ten days :
it was a normal cruise, like we had in the years 2019 and before. You do not have to wear masks and you can sit near to other guests and talk and meat other travelers.
Nobody wears masks during time on land, planes, airports and other crowded areas - so what is different on a ship ?
The ship never felt crowded, even on sea days there were so much free spaces left.
The Tote bags are not on the ship right now, we got that information after arriving in our cabin, because they are waiting for new ones, but they have some problems with the production. Absolutely no problem for us.
Cabin and ship was always clean, food always very good.