Who are project stakeholders and why do project managers need to manage them?

Qatar airways sponsered FIFA 2022 

Lecture 2 – Stakeholders
Who are project stakeholders and why do project managers need to manage them?
“A stakeholder is an individual, group, or organization that may affect, be affected
by, or perceive itself to be affected by a decision, activity, or outcome of a project.
Project stakeholders may be internal or external to the project, they may be
actively involved, passively involved, or unaware of the project.
Project stakeholders may have a positive or negative impact on the project, or be
positively or negatively impacted by the project.”