So out of curiosity, given the above discussion, would she consider herself a gamer? Would you consider her a gamer?
Like she wouldn't buy a "gaming chair" or any other gamer-branded/oriented merch nor are the games something she talks about much.
To most people the term gamer does not precisely mean "one who plays games." The type of games and immersion in gaming culture are factors that people consider when labeling themselves and others "gamers."