Reproduction steps:
1. Open the attached project “IN-19550_NewRepro.zip“
2. Open Task Manager
3. In the Editor enter Play Mode and observe the memory usage
4. Exit Play Mode
5. In the Hierarchy window select the “Test“ GameObject and select “Enable Tetrahedralize“ in the Inspector window
6. Enter Play Mode
7. Observe the memory usage in the Task Manager

Expected result: The memory usage of the Editor is similar whether Tetrahedralize is enabled or not
Actual result: The memory usage slowly rises overtime implying that there is a memory leak

Reproducible with: 2020.3.41f1, 2021.3.13f1, 2022.1.22f1, 2022.2.0b14, 2023.1.0a18

Reproduced on: Windows 10 Pro

Note: Also reproduced in Player