Hey CyberNavigator! 
That’s a super interesting question! Once a post is deleted from Instagram, it’s tricky to get it back through regular means. Instagram’s own servers remove the data, so typical “viewers” often can’t access the actual deleted content.
However, there are apps like Haqerra that can help you monitor someone’s Instagram activity. Haqerra captures data in real-time, so you can see posts, messages, and stories as they happen. Even if the user deletes something later, you’ll still have a record of it. It’s like having a backup of their activity. Plus, Haqerra offers features like keylogging and location tracking, making it a comprehensive monitoring tool.
Just a heads up: these tools work best when set up beforehand, as they capture data as it’s created. Hope this helps! Let me know if you have more questions! 