Reproduction steps:
1. Open the attached “BugRepro” project
2. In the Build Settings, make sure iOS platform is selected
3. In the Addressables Groups window (Window > Assets Management > Addressables > Groups), build the bundles (Build > New Build > Default Build Script)
4. In the Addressables Reports window (Window > Assets Management > Addressables > Addressables Reports), select the latest report
5. Observe the Totals size of all bundles
6. In the Build Settings, switch to Android platform
7. Repeat steps 3-5

Expected result: The bundle sizes on iOS and Android are the same, or nearly the same
Actual result: The iOS bundles size is double than the Android bundles

Reproducible with: 1.21.19 (2022.3.31f1), 1.22.3 (2022.3.55f1), 2.3.1 (6000.0.32f1, 6000.1.0a8)
Couldn't test with: 1.22.3 (2021.3.57f1) (Addressables content build failure)

Reproducible on: macOS Sequoia 15.1.1, Windows 11 (By user)
Not reproducible on: No other environments tested