The juniors seem fine
The junior members of our feline family—3 boys and 3 girls, all now neutered—have switched to adult sterilised sensitive food.
Between the two sisters, one is more sensitive to chicken meat (no matter the amount), both having been spayed at 6 months old.
It seems that rabbit suits them well, but we’ll see how things go as they grow older, especially after they turn 1. We do have options. Among the boys, one had a recurrence of struvite crystals within 5 days, so he’s on a special diet.