From Share photos & videos
Anyone that has the shared link will be able to see the album
Extract from the above link:
Send a link or share to other apps
- On your computer, open https://photos.google.com.
- Place your cursor over a photo or video and click the check mark . You can also select other items, or open an album or movie.
- Click Share .
- Send a link or select an app to share. You can also enter or select a name or email address.
- Optional: You can also add a message when you share. To manage these messages, go to the activity log.
