If you don't need to support IE9 or lower, you can use flexbox freely, and don't need to use floated layouts.

But floats are still useful and relevant! In fact, we have to use them for the shape-outside property to work.

Now that we’ve gotten newer layout features — again, like grid and flexbox — floats, too, have sort of fallen by the wayside, perhaps either because there are better ways to accomplish what they do