Bob
I understand they have stabilisers which move as the ship rolls/pitches, and which seem to work very well.
We, Mrs F and !, have been on her sister QE twice, including once across the Bay of Biscay when we were accompanied part of the way by a Sandown class minesweeper that looked to be extremely uncomfortable as it was pitching and rolling like anything.
QE on the other hand just had a very slow gentle roll and no obvious pitching. OTOH, on the top deck the wind was horrendous. – The promenade deck (where the lifeboats are) was closed off on that day. You could hold a drink or cup of tea, no problem.
We just pulled away from the Sandown class minesweeper as we ran up to the English channel.
Paul.