There has been no talk in the WhatsApp group in our prep - nor I expect any.
The school has actively discouraged the DC from discussing openly given obvious sensitivities, and the parents have stuck to that steer as a group.
Of course, you may have closer relationships with specific mums, like we all do, and discuss with them on a one-to-one basis. But, personally, I think that group discussions on offers, rejections, etc, tend to be neither useful nor healthy.