The Cathay Pacific lounge at CDG is located right beside the American Airlines lounge, and unless you get your access to the AA lounge via an Admirals Club membership or credit card, you probably have access to either lounge.
The lounge is just a large room, but it’s decorated and furnished according to Cathay Pacific standards. It’s the same color palette for chairs, the same solus chairs, the same white marble bar that you find in these lounges around the world. There’s plenty of seating, with both a dining area and lounge area, and the lounge was overall less crowded in the morning compared to the American lounge next door.
Besides the dining room and seating, there’s a computer room, luggage room, and showers. There are some nice large windows with good views of the apron, and electrical outlets were plentiful (albeit with European-style outlets rather than universal ones).
The breakfast options in the Cathay Pacific lounge were not quite as good as the breakfast options next door, but there were some fun drinks like Orangina, canned oolong tea, and canned soy milk.
There is a noodle bar in this lounge, but it doesn’t start serving food until 10am. I’m just going to come out and say it, but I really don’t think Cathay Pacific’s dan dan noodles are very good… Lots of people seem to like them, but I don’t think they’re very flavorful, and the little flavor they do have just isn’t quite right.
Even if this lounge is slightly lacking in the breakfast department, it’s significantly better for lunch than the AA lounge (mostly because the AA lounge doesn’t actually transition to a lunch buffet). There’s a salad bar and a variety of hot food options, in addition to the aforementioned noodle bar.
Overall, it’s a solid Cathay Pacific lounge with better-than-average food for an outstation lounge. If you’re choosing between the two oneworld lounges, I’d probably go to the AA lounge for breakfast, the Cathay Pacific lounge for lunch, and the Cathay Pacific lounge for a somewhat quieter experience.