Plenty of employees have experienced the frustration of working with a manager who can't seem to manage properly. The reality is that it can be a tougher job than it gets made out to be, and management is a professional skill to be worked on just like any other. With a little effort and conscientiousness, somebody can go from a lackluster boss to a person who is a pleasure to work with. All they can do is try.
I have had jobs before where it felt like even more of a heroic effort than usual to start a shift because I was dreading the fact that I had to deal with an annoying boss. I've also had working experiences that were far better than expected because my supervisor was actually invested in providing the support that they were supposed to. When it comes to good managers, there are some shared traits, often revolving around being relatively hands-off but also concerned for the well-being and advancement of the employees that they work with. This is a balance that can be more difficult to achieve than it sounds.
The one advantage of dealing with a bad boss in a previous role is that you come to appreciate when you get a manager who does their job well. You are better positioned to see the ways in which they improve the working environment. A lot of successful management comes down to establishing decent morale, and while that may not be a one-person job, we shouldn't discount the power of an individual contribution.