When using very small objects in the scene, the camera zoom (when using the mouse wheel) should follow the camera speed setup:

How to reproduce:
1. Open the attached project or create a new project and add a 3D sphere with the scale set to [0.01, 0.01, 0.01]
2. Double-click on the Sphere in the Scene Hierarchy to focus on it
3. Try using the mouse wheel to zoom in and out
4. Observe the Scene Camera behavior

Expected result: The Camera zoom sensitivity adapts to the small object Scale which allows small zoom increments
Actual result: The Camera zoom sensitivity does not adapt to the small object Scale. Trying to zoom in overshoots the object due to large zoom increments

Reproducible with: 2018.4.32f1, 2019.4.20f1, 2020.2.5f1, 2021.1.0b7, 2021.2.0a4

Notes: Setting the Camera Speed from the scene top bar options does not fix the behavior