It's an employee market now for us in tech, software developer or tech-related roles. So if you don't feel that your pay is justified, whether compared to fresh grads or whatever, just make the move. If you find it hard to even get interview, then you have two options. Just remain comfortable in your current role, or wake up your idea and upskill.

On average, you should be receiving 2-4 LinkedIn messages on new opportunities every month. Otherwise, your public CV or personal branding is really bad, or probably your skills aren't good enough or relevant enough for the market now.