This trope didn’t occur much on Digimon, although it was mentioned several times.
One occurrence: During the episode, “The Birth of Greymon”, Izzy’s stomach growls while he’s trying to figure out how the Digivice works.
Yolei's stomach growls in the episode "Digimon World Tour Part 3".
Yolei: (after her stomach growls) I guess we don't need a translator to explain that.Sora: We may not understand each other, but growling tummies are universal. Guilmon's stomach growled in the third season episode, "Homeward Bound". Takato in "Beelzemon's Big Day". Antylamon gets this in "Rabbit Transit". On Digimon Frontier, Zoe's stomach growled twice in the episode "Trailmon vs Trailmon". Agumon's stomach growls on the first episode of the fifth season, "Savers/Data Squad". From Digimon Fusion, Archelomon's stomach growled in the episode "Island Zone in Chaos." Wisemon's stomach growled in the episode "Lost in Digital Space." Shoutmon's stomach growls in the episode "Psyche Out in Cyber Land". Happens to Agumon in episode 6 of the 2020 reboot of "Digimon Adventure".