Most, but not all slide types, have some kind of animation that you can change. To change the animation of a text or object.
Click on the slide, to open the slide settings menu (to the right)
Settings related to animations can be found under multiple categories in the slide settings menu, pending the slide type and element that has been animated. Keep your eyes open for names such as “animation settings”, “icon settings”, “message animation”, and “listicle animation control”.
For slide-specific instructions on how to change slide animations, go to slide types.
More readings on text animation: