In unity I fix that with *Default Contact Offset.*
On unity Description :
Description public static float defaultContactOffset;
The default contact offset of the newly created colliders.
Colliders whose distance is less than the sum of their contactOffset values will generate contacts. The contact offset must be positive. Contact offset allows the collision detection system to predictively enforce the contact constraint even when the objects are slightly separated.>
In Godot I only found :
Continuous Collision Detection (CCD). You'll find it listed as Continuous Cd in the Inspector. Using CCD alters the way the physics engine calculates collisions. Normally, the engine operates by first moving the object and then testing for and resolving collisions. This is fast, and works in most common situations. When using CCD, however, the engine projects the object's movement along its path and attempts to predict where
I activate it but I cannot change any value. That doesn't change anything.
I didn't find anything on sleeping settings. I cannot try options.
I will be surprise that Godot cannot set up that.