Hi Sefirothe,
Let's try following this user guide and see if it helps.
Share content in Messages on iPhone - Apple Support (NG)
"Find all the content someone shared with you
- Open the Messages app
on your iPhone. - Open the conversation whose content you want to see.
- Tap the name of the person or group you’re communicating with at the top of a conversation.
- Scroll down to the Shared with You section.
Note: Content only appears in Shared with You if the person who sent it is in your contacts.
You can find a Shared with You section in Photos, Safari, News, Music, Podcasts, and other supported apps.
Review and save photos or videos
If you receive multiple photos or videos at the same time, they’re automatically grouped into a collage (two to three items) or a stack (four or more).
- Open the Messages app
on your iPhone. - Do one of the following:
- Look inside a stack: Tap to open, then swipe through a stack to view, reply, or interact with each photo or video individually.
- Save a photo or video: Tap
next to the photo or stack.
Pin shared content
If someone shares content that’s especially interesting, you can quickly pin it in Messages, and it will be elevated in the Shared with You section of supported apps, in Messages search, and in the conversation details (the info you see when you tap the name at the top of the conversation).
- Open the Messages app
on your iPhone. - Open the conversation with the content you want to pin.
- Touch and hold the message bubble containing the link, then tap Pin
.
Note: Photos can be saved to your library, but not pinned."
We hope this helps.
Cheers!