Thanks for reaching out lugon,
It sounds like you have joined your wife's iCloud Shared Photo Library, but your videos are not being shared in return. We can help.
You can follow this guide to Add content to an iCloud Shared Photo Library in Photos on iPad:
After you set up or join an iCloud Shared Photo Library in the Photos app
, you can continue to add photos and videos in several ways:
- Manually move photos from your Personal Library
- Save photos and videos you take directly to the Shared Library from Camera
- Share photos you take when other members of the Shared Library are nearby
- Share photos and videos you take at home
Note: iOS 16.1, iPadOS 16.1, and macOS Ventura are required to use iCloud Shared Photo Library. Photos and videos added to a Shared Library won’t be available on devices with earlier versions of the software.
It is also important to keep in mind that all content added to a Shared Library counts toward the iCloud storage space of the library organizer. See Add storage space to your Shared Library if you find you have insufficient storage for all your photos and videos to be shared.
Hope that helps.
Take care.