flag: Cuba

Apple's design shows a waving flag with three blue and two white horizontal stripes, a red equilateral triangle at the hoist, and a white five-pointed star inside the triangle.

Google's Noto design displays a flat rectangular flag with alternating blue and white horizontal stripes, a red triangle on the left, and a centered white star within the triangle.

Twitter's Twemoji depicts a slightly waving flag with three blue and two white horizontal bands, a red triangle at the hoist side, and a single white star in the triangle.