Steps to reproduce:
1. Open the attached project ("1345297.zip")
2. Open "SampleScene"
3. Build and run it on a device
4. Notice the incremented numbers being printed and the sound source playing
5. Tap "Show Add" button

Expected results: The incremented numbers are not being printed and the sound is paused while the ad is running
Actual results: The incremented numbers keep being printed as well as the sound keeps on playing while the ad is running

Reproducible with: Ads 3.7.0, 3.7.3 (2018.4.36f1, 2019.4.28f1, 2020.3.13f1, 2021.1.14f1, 2021.2.0b2, 2022.1.0a1)
Not reproducible with: Ads 3.5.2, 3.6.1 (2018.4.36f1, 2020.3.13f1)

Notes:
- The project might require setting up Advertisements: https://docs.unity3d.com/Packages/com.unity.ads@3.5/manual/MonetizationBasicIntegrationUnity.html
- Doesn't reproduce on Android