Manage notifications from Photos on Mac
You can choose to be notified when someone likes or comments on a shared album. You can also turn off notifications for a shared album.
Turn notifications on or off for a shared album
In the Photos app on your Mac, click a shared album under Shared Albums in the sidebar.
Click the Collaborate button in the toolbar.
Select or deselect Notifications.
Note: Subscribers who view your shared album on the web can’t comment on the items in it or view new comments posted by you or others. To make comments visible to someone without a Mac, iPhone, or iPad, post the comments before you invite the person to view the shared album.
Click the Collaborate button in the toolbar again.
You can set options in Notifications settings to turn off all notifications for Photos, change how the notifications appear, and more. To pause notifications from Photos, turn on Do Not Disturb or another Focus.