No other role in Scrum can contribute to mediocre outcomes like the Product Owner—garbage in, garbage out. Therefore, the following list of some of the most common Product Owner anti-patterns might be a starting point to reflect on the role; maybe, there is room for improvement?
If you recognize some anti-patterns in your daily work, why don’t you ask the rest of the Scrum Team for support? For example, run a Retrospective with teammates and stakeholders on how the team is doing regarding figuring out what is worth building.