Reproduction steps:
1. Open the attached “repro_IN-95227“ project
2. Open the “Assets/OutdoorsScene.unity“ Scene
3. Open the “Profiler” (“Window → Analysis → Profiler“)
4. Enable “Deep Profile”
5. Set “Target selection“ to “Play Mode“
6. Enable recording
7. In the “CPU Usage” row, enable only the “Rendering“ graph
8. Enter the Play Mode
9. While the Game view is focused, press the “Spacebar“ button on your keyboard and wait for the terrain to be generated
10. Once it’s generated, pause the Play Mode
11. In the “Profiler”, in the “CPU Usage“ row, select the first green spike
12. In the Hierarchy of the Profiler, search for “TerrainManager.CutAllTerrains“
13. Notice the “Total” value

Expected result: Value of “Total” is low
Actual result: Value of “Total“ is high

Reproducible with: 2022.3.58f1, 6000.0.39f1, 6000.1.0b7, 6000.2.0a4

Reproducible on: Windows 10 (22H2),
Not reproducible on: No other environments tested

Notes:

• In the test project, the value of “Total“ can reach around 50%
• In the real user project (which is very complex), the value of “Total“ is around 17%