I noticed there are very few PS2 runs I know that a certain strategy in Shadow the Hedgehog runs causes crashes more commonly on ps2 than it does on gamecube Is there any difference with Sonic Heroes on ps2 and gamecube? Or is the Gamecube just more popular?

PS2 easily has the most issues out of all ports of Heroes. PS2 will have a lot of slowdown on top of having a 30 FPS cap. There are also a number of visual glitches that can occur.