Instagram does not allow users to zoom into photos.
There’s a few potential reasons why videos might not be saving on Instagram. First, it could be that the video isn’t being stored in Instagram’s media library. If the video is being uploaded from a phone or camera, it might not be saved in MP4 or HD formats. Second, some videos may have expired and been deleted by Instagram. Finally, if you’re using an older version of Instagram, the feature for saving videos may not currently exist.
There could be a number of reasons why you are not seeing notifications on Instagram. It is possible that your account has been deactivated, or that you need to be signed in to see them. Additionally, some accounts may only send notifications for direct messages, while others may send them for all posts.