That's ok if they produce the eggs to go along with the appetite.
I think the California Gray has a smaller appetite than most breeds of chickens.
If you search online, you will see that the California Gray is listed on many top 10 lists for best egg-laying breeds. And often several of the "breeds" on the list are sex-link hybrids.
If you want white eggs, you won't go wrong with California Gray pullets. You should get 250 to 300 eggs a year from each California Gray.
And unlike the hybrids, you can breed California Grays to produce more in the future. In addition, California Grays are much calmer than Leghorns.
The California Gray is one of the best all-around chicken breeds.