The PlayStation2 is a system designed almost entirely from the ground up for use with CRT TVs. Like any other game console built around analog video output, it is not designed around pixels or resolution, but scanlines and timing. Yes, there is a way to attach a VGA monitor for the official PS2 Linux toolkit so there are some VESA display modes as well, but this is more of an afterthought, and almost no real commercial game used this.
