"Stakeholder" ranks #1 among corporate bullshit roles. It serves a dual purpose: (a) representing a group so nobody can be blamed for excluding them, and (b) providing typically useless feedback so that the group appears to actually care or have a clue.
I have to mention words like "stakeholder" at behavioral interviews and to leadership just to sound like I belong at my seniority level.
But I don't want anyone holding any stakes. I wish people would just get shit done. Shit that matters to the CEO. Or leave.
I don't want people holding stakes because they want a promotion, because their direct manager wants to launch a corporate political battle into another team, or because some salesperson wants to get a commision for an otherwise worthless customer. I don't want roadblocks in the name of security so that the IT guy has a sense of self-worth. I don't want someone trying to protect their egos around something they worked on for 3 years, when there's new tech that supersedes it.
Anyone who has to work with the product is a stakeholder. Their stake in it is the fact that they will be interacting with it, and thus they care how, and whether, it works.
This is pretty much the only way I've ever heard it used in the companies I've been at.