How to reproduce:
1. Open the user's attached "MisleadingWarningInstancedMeshes.zip" project
2. Open the "SampleScene" Scene
3. Select the "Cube" GameObject in the Hierarchy window
4. Observe the Mesh Renderer Component Inspector window

Expected result: No warnings in the Mesh Renderer Component
Actual result: "This Renderer uses static batching and instanced Shaders." warning in the Mesh Renderer Component

Reproducible with: 2018.4.34f1, 2019.4.24f1, 2020.3.5f1, 2021.1.5f1, 2021.2.0a15

Note:
- Full warning message: This Renderer uses static batching and instanced Shaders. When the Player is active, instancing is disabled. If you want instanced Shaders at run time, disable static batching