The Bahamas flag is oversized.

El Salvador too.

https://i.ibb.co/G7yFv2x/elsalvafag.png

I know nobody cares bout this but Curacao flag also shows squared.

Nepal flag shows OK, 3 flags are actually square shaped, Switzerland, Belgium and Vatican. OK, I admit I have never seen a Vatican flag and should never see with the kind of things I seed.

Sint Maarten flag also oversized, now ban me.