Pulling Open Graph Image Dynamically

Hi! I’m wondering about open graph settings.

I’d like to set up my CMS collection (a blog) so that the featured image will appear also as the open graph image.

I see that open graph images require a certain pixel dimension/ aspect ratio. Does this mean that for my feature images, I’m confined to use the open graph dimension/aspect ratio, so that they’ll work for the open graph settings?

Thanks!!