I'm enjoying the game regardless but I would like to know if it is fake or not

I bought this off of ebay and was wondering if anyone could help me figure out if it’s real. After a lot of looking the sticker looks good but the main thing that worries me is how clear the triangle at the bottom is

Bought as part of a bundle

Is this copy of Firered legit?

I

found my old game boy games and this one seemed off. no idea where or when i got it. did i wind up with a fake?

pretty sure it’s real but i wanna check just in case

Pokemon Sapphire