Most, but not everything you want is possible. Specifically, you are technically entitled to one entree from each meal not two or multiple.

In practice, you can usually get more due to some pax not eating, extra loading, etc. But crew will usually tell you they need to check with everyone before they can confirm your desire for multiple entrees. It is not an entitlement to have multiple mains, unfortunately.

The rest of the things indeed are "entitlements" of F. Dine on demand, eat whatever from anywhere on the menu, etc. But multiple entrees isn't. That can be a separate debate, because CX loads so few meals these days it's a joke. Especially if 5/6 or 6/6 in F. For whatever reason, those seem to be the flights things are really low. For example, normally I like to eat some part of the Chinese set menu, whether the appetizer or soup or main. But I also like to eat a few Western options including an appetizer and main. I don't do it all at the same time. However, almost without fail I am told to wait until the crew collect meal orders from everyone. And on 5/6 or 6/6 flights especially with other Asian pax who tend to eat the Chinese meal, it's not possible.

Not in F, but in J actually I saw a passenger get pissed off because he couldn't eat multiple burgers. But the crew stuck to their guns and said they needed to ensure other pax had a shot. He only ended up getting one .

I wish CX loaded more food but they really have cut down on the quantity of items in the decade+ I've been regularly flying CX F. It's very normal for them to quickly run out of a popular item or two on 5/6 or 6/6 flights. The lack of abundance is a big part of their F&B problem in F IMO.