Genuine question, how does the game put us in the shoes of Ian over Lena?
The game literally starts with Ian's POV and not with Lena's POV. Additionally, most players of these games are male, which further makes us consider him the "Main Protoganist", and Lena the second protagonist.
It would be disingenuous to say the opposite. We "instrumentalize" Lena, going for the routes we go with her for selfish reasons (even if they are bad for Lena). At the same time, we naturally tend to make the best choices for Ian and try to make Lena be the best gf possible for him.
None of this is bad, it's actually good. But it does mean that the things that worked for GGGB may not work for ORS.
You didn't like GGGB then?
In GGGB you were always on Ashley's shoes and only Ashley's shoes. The perspective is exclusively hers. You naturally get immersed and you are free to make choices
I'll give a more concrete example:
I didn't give a fuck about Ashley's boyfriend, I cheated on him, fucked his Dad, fucked whoever I wanted with no remorse. On GGGB, I just wanted to have fun through Ashley's POV.
While playing ORS, while playing has Lena, I avoided all content that didn't involve Ian. Because I "wasn't Lena". I was Ian, just controlling what Lena was doing and I wanted her all for myself.
It's not that hard to understand, tbh. But not everyone gets immersed in stories, it's pretty rare.