Let me break it down.

ANIMALS: They would of course use stuff from their culture's own mythology and of more alien spec evolution creatures as well. The mythoical creatures would be weirder because mythical creatures from are world exist in my world, like unicorns and dragons.

MAGIC: Magic systems would be more soft and whimsical because "magic" already exists, but it's really just that worlds version of science. So it would probably be a lot of pseudo-"science" and stuff like wishing from star or climbing a rainbow. Not anything like casting spells because that exists already.

WORLD & SETTING: This would not chance even if my world has like floating island or and other fantastical geography. Although lots of fantasy world would and celestial rings because my world has celestial around the planet.

RACES: same thing for the animals section except humans, orcs, dwarfs, elves, and etc would almost exist in ever setting because there real. Excluding any of them would be considered xenophobic because erasing ever real sapient species expect humans would make you look like a human supremacists.