No one likes competitive coworkers. I've heard of some being fired for being too competitive. I've also had a manager being very competitive against us people

No one likes competitive coworkers. I've heard of some being fired for being too competitive. I've also had a manager being very competitive against us people reporting to him. He always tried to monopolise interesting projects, fully control standups such as telling us who goes next who does what. Disregard important pieces of work done by other team members because he didn't contribute in it and take credit for other people's work. Intentionally hire lower skilled candidates so he can be "top" one in the team... One of the main reasons I left that job, don't be like that guy.