How to reproduce:
1. Open the attached “IN-83830” Project
2. Locate and open the "Playground" Scene
3. Enter Play mode
4. Locate the "Camera Switcher" GameObject in the Hierarchy and press the "Switch" button in the Inspector window
5. Locate the "Virtual Camera" GameObject in the Project Hierarchy
6. Observe the "Virtual Camera" Transform Position drifting in both the Game window and the Inspector

Expected result: Cinemachine Camera stays in its fixed position after switching into it
Actual result: Cinemachine Camera drifts when having multiple Parent GameObjects in the Project Hierarchy

Reproducible in: 3.1.1(6000.0.19f1, 2022.3.46f1), 2.10.1 (6000.0.19f1, 2022.3.46f1, 2021.3.43f1)
Not reproducible in: 2.10.0 (2020.3.48f1, 2021.3.37f1), 2.6.17 (2020.3.48f1)

Reproducible on: Windows 11
Not reproducible on: No other environments tested

Notes:

• Ensuring that the Camera object only has a maximum of one Parent GameObject fixes the drift issue
• The issue has been confirmed to be caused by floating-point precision inaccuracies within the Unity Engine when evaluating the Cinemachine camera’s transform.SetPositionAndRotation(transform.position, transform.rotation)