Baked NavMesh is dense when scene geometry includes diagonals

Reproduction steps:
1. Open the user's attached project
2. Open the 'SampleScene'
3. Enter Play mode

Expected result: The NavMesh is baked without unnecessary points on diagonal mashes
Actual result: The baked NavMesh is very dense

Reproducible with: 2020.3.34f1, 2021.3.0f1, 2022.1.0b16, 2022.2.0a11
Could not test with: 2019.4.37f1 (due to compile errors)

Note:

• Issue is no longer reproducible after rotating both 'TestMesh' and 'TeshMesh1' GameObjects 45 degrees on Y-axis