It's definitely a genre thing.

Sim games, platformers, management games, multiplayer shooters etc very rarely bring it into the equation because in those games then either:

A) There's no named protagonist at all

B) The protagonist is 'You' so as little as possible is depicted about them to be unobtrusive

C) The protagonist notionally exists and has a name and depiction, yet they are so irrelevant to the story that no details about them are provided.

Narrative-driven games are a totally different beast.