OK if you are used to US airports where there are lots of bar and restaurant options, you will find CDG 2F disappointing.
On the other hand, if you're looking to buy a Hugo Boss suit, or Swarovski jewelry, or a Rolex watch - you are in luck! I mean come on - who buys a $10,000 watch at an airport???
If you just want a good French meal or a drink at a bar - good luck!
I walked around for quite a while before eventually settling on Guy Martin's The French Taste. https://www.sortiraparis.com/hotels-and-restaurants/restaurant/articles/171888-the-french-taste-guy-martin-s-bistronomic-restaurant-at-charles-de-gaulle-airport/lang/en
I was seated quickly and ordered the duck and a glass of wine. The duck was served quickly and was OK but a small portion. With wine, the bill came to $44. I was done in about 40 minutes. There was a somewhat annoying guy at the table next to me who insisted on talking to me and wouldn't take the hint, so I left without desert or coffee.
The other options were some vegetarian counter service place that was totally mobbed, and a sandwich cafe. There was also a Starbucks.
I had a few extra hours so decided to visit the Air France lounge and buy a day pass for $50. The woman at the desk brusquely informed me they weren't selling day passes that day.
So... I ended up finding some seats in a corridor between 2D and 2F and sitting there for about 2 hours until my flight left.
VERY disappointing layover.