Why are sprites in different positions in the scene and the game window?

It’s ridiculous, the gameobject in the game window overlaps the ground, but the scene window is normal. As a result, modifying the scene cannot make the game display properly.
191449-gif-2022-1-20-6-56-22.gif

This is the game window and you can see the possum sinking into the ground.

191450-gif-2022-1-20-7-00-15.gif

But in the scene window everything looks normal, the colliders are touching instead of overlapping.
This should not be a code problem, could you please give me some advice

Is the camera in perspective rather than orthographic?