Yes, you are. If you want something digital, you can only get it at PSN, which on PS has the monopoly. That there's an "entirely" different alternative (physical) doesn't matter that much because we're talking about digital goods only and how they are priced without digital alternatives/competition. And then, to my limited knowledge about acts/laws we are talking about the
DMA which I think my fellow Dutchies will use for this to make their case.
I believe it to be quite similar with the Epic vs Apple case. In that case saying:"you can just use an Android device" didn't stick, either. At least, not in the EU.