Reproduction steps:
1. Download bundleTool from https://github.com/bundletool/releases
2. Open the attached “BugRepro” project
3. Click File > Build Settings… > Build
4. Go to the Build folder
5. Open Command Prompt, and enter “java jar bundletool-all<bundletool version>.jar build-apks --bundle=<build name>.aab --output=repro.apks”
6. Open repro.apks with 7z
7. Go to asset-slices
8. Double-click UnityDataAsset-master.apk
9. Go to assets > bin > Data
10. Observe the compression method of “datapack.unity3d”
Expected result: “datapack.unity3d” compression method is “Deflate”
Actual result: “datapack.unity3d” compression method is “Store”
Reproducible with: 2020.3.45f1, 2021.3.18f1, 2022.2.7f1, 2023.1.0b4, 2023.2.0a2
Reproducible on: Windows 10 Pro 22H2