Will Humphreys says tell your manager you're unhappy before you quit. It gives them a chance to fix things, helps you know if you really want to leave, and might save you from regretting the decision later.
Chapters
Before you quit your job, do this. Tell your direct report that you're not happy. Most people who quit, who don't tell their direct reports are giving up on an opportunity to possibly improve their current situation. What happens a lot of times is that when people jump ship before communicating, they're not feeling complete is that they find that the grass isn't greener on the other side, and they regret the decision. So if you're in a position where you're just not sure what to do, tell your direct report. If if they don't receive it, well, there's your answer. It's time to leave. But maybe they're going to give you an option to do something at work that you didn't know was available if you hadn't communicated it. So be courageous. Be strong, Be a leader.