You should be present on the social platforms that your target customers use the most and plan well to engage with them to get the most of it.
There’s nothing wrong with posting the same content occasionally on every social media platform for your brand.
Brand presence on social media can help you build huge brand awareness, engagement with potential customers, earn their loyalty, increased website traffic, and sales.
You can see your social media success with increased website traffic, quality leads turning into customers, improved number of followers, customer engagements, etc.