How to reproduce:
1. Open the attached “IN-148433_distree” project
2. Open the “SampleScene” scene
3. Navigate to Assets → AddressableAssetsData → AddressableAssetSettings
4. In the Inspector window, make sure that the “Disable Write TypeTree” setting is enabled in the Build section
5. Navigate to Window → Asset Management → Addressables → Groups and open the Addressables Groups window
6. In the Addressables Groups window, click Build → New Build → Default Build Script
7. In the Addressables Report window, take note of the “Total size of all bundles” value in the Aggregate Information section
8. Navigate to Assets → AddressableAssetsData → AddressableAssetSettings
9. In the Inspector window, make sure that the “Disable Write TypeTree” setting is disabled in the Build section
10. Repeat steps 5 through 7
11. Observe the difference between the noted “Total size of all bundles” values

Actual result: With the “Disable Write TypeTree” setting either enabled or disabled, the “Total size of all bundles” value is identical
Expected result: With the “Disable Write TypeTree” setting enabled, the “Total size of all bundles” value is smaller than with it disabled

Reproducible with: 3.0.0 (6000.0.80f1), 3.0.1 (6000.0.80f1)
Not reproducible with: 2.11.1 (6000.0.80f1)

Reproducible on: macOS (M4) (26.5.2), Windows 11 (by user)
Not reproducible on: No other environments tested