Appears to be, I had a quick look in Dolphin to see if there was a way to find out exactly what res it is but I’m not that familiar enough with it. Here’s a native res shot out from Dolphin (displayed with how the game scales the frame buffer), the mid-distance for a ‘480p/i’ game is quite poor
Red lines normally touch the top and bottom edges of a screen in 4:3 but shows how much is missing from the expected vertical resolution of a full fame ‘480p’ game. The horizontal got even more bitten off though, those pillar boxes are huge!
Edit: Hmm seeing 512x288 pixels being claimed here, not sure if it is 512x448…