Great Apes are omnivores
Yes, all great apes are omnivores. This includes gorillas, orangutans, chimpanzees, bonobos, and humans.
Great apes are omnivores because they eat fruits, plants, and other animals. However, most of their diet is herbivorous. Their diet depends on where they live, with some species eating more fruits and others eating more leaves and shoots.
Great apes eat leaves, fruits, seeds, stems, insects, and grubs. Chimpanzees also eat flowers, tree bark, and ants and termites.
Great apes occasionally eat meat, including small primates. Chimpanzees are the nonhuman primates that eat the most meat, but much less than African hunter-gatherers.