“Media upload” on Snapchat refers to the process of sending photos or videos from your device’s gallery to the app. It usually appears when Snapchat is uploading or processing your media content for sharing in chats, stories, or memories. It can also indicate a delay due to weak internet connection.
On Snapchat, media upload means adding photos or videos from your phone’s gallery or camera roll to your Snapchat story, chat, or memories instead of capturing them directly through the app.
"Media Upload" in Snapchat means that the Snap was made with media (an image or video) that was saved beforehand in your phone's camera roll or gallery, and not through a live capture in the app.
