Reproduction steps:
1. Open the attached project “NavMeshTest”
2. In the Hierarchy window select “NAV MESH 1” GameObject
3. In the Inspector window Bake the NavMeshSurface
4. In the Hierarchy window select “NAV MESH 2” GameObject
5. Repeat step 3
6. Inspect “NAV MESH 1” and “NAV MESH 2” bounds in the Game view

Expected result: Bounds for both GameObjects only include geometry
Actual result: Bounds for “NAV MESH 2” Include not only geometry

Reproducible with: 1.0.0-exp.4 (2021.3.30f1), 1.1.4 (2022.3.9f1, 2023.1.13f), 2.0.0-pre.3 (2023.2.0b9, 2023.3.0a5)

Reproducible on: Windows 10
Not reproducible on: No other environment tested