What are your experience and interests? Just like SEO, or search engine optimization, there exists the concept of LinkedIn profile optimization. It includes things like having a good profile picture, making sure your profile has a clear niche (fullstack, backend, embedded, etc), having clear bullet points for each of your company experience sections, with numerical values if you have the data ("increased performance by X% using A, B, C"), setting your location to a well-known tech hub, and so on.

Once I did all that, I've multiple gotten daily messages with very interesting offers. LinkedIn is a tool like any other, people simply have to learn how to use it.