Google Pixel Buds will now let you decide which apps will whisper sweet notifications in your ears
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Update will allow Pixel Buds wearers to decide which apps to receive Spoken notifications from
To get to the settings, click on the Google app. Under the Google Assistant heading, go to Settings > Devices > Pixel Buds > Spoken notifications, and you'll have access to the list of apps on the handset. From there, each app has its own toggle switch allowing users to decide which apps can whisper sweet notifications in their ears. Keep in mind that this is not an update to the Pixel Buds themselves. The feature appeared after version 8.2 of the Google app was installed on an Android handset, indicating that it is the app that receives the update.
source: 9to5Google
Things that are NOT allowed: