It's fine to share the same content on both Instagram and Facebook, but it works better when you adjust it a little for each platform. Instagram is more about visuals, so short captions, clear photos, or short videos do well there. Facebook allows longer posts, links, and discussions, so you can add more context or ask a question to spark comments. Using the same photo but writing a different caption or adding a poll on Facebook can make it feel fresh. Reposting the exact same thing without any change may look lazy or automated, and your audience might ignore it. So it's better to keep the same message but adapt the format to fit how people use each platform. That way, it feels more natural and engaging.