Hi there, kannw101,
Thanks for visiting the Apple Support Communities. If I understand your post, you’re trying to move pictures from the Photos app to the Files app, but no longer see an option. I’m happy to help!
To move a picture, go into your Photos app, select the picture you’d like to move from an album, then tap the share button in the lower left of the picture. If you don’t see the share button, and instead see a solid black border, tap the picture. Once you tap the share button, additional options become available, including those to message or AirDrop the picture, or to add it to Notes, Reminders, email, etc. If you scroll down, additional options appear below, including things like Copy Photo, Add to a Shared Album, and all the way toward the bottom, Save too Files: Share photos and videos on iPhone - Apple Support.
This works the same if you are trying to save a picture directly from Messages into the Files app, as well.
Best!