The only argument any NPC in the actual game makes against Anora being Queen is her bloodline. That's it. They're going to yank her job and crown away from her, even though they admit she's good at what she does, soley because of her commoner roots. To me, that's the ultimate in looking down on someone because she's a commoner. Since it comes from the actions and dialogue in the game, that's as canonnical as it gets.

That's what Eamon says, but Eamon isn't the Landsmeet. Clearly the Landsmeet is still willing to follow her. Aside from Eamon and whomever you happen to be asking for rumors, who disses on Anora for being a commoner?

Sure. This is probably exactly what the nobility tells itself in order to legitimize and justify their oppressive class structure and limiting opportunities for people born below their priviledged station as well as justifying their taxes and revenues on the commoners to support their fighters.

Where exactly is this claim coming from?