Change featured image on homepage for social media preview

When I share my homepage URL the image that is grabbed for Facebook etc. is taken from one of the latest posts. The featured / preview image, not sure what it’s called.

I want it instead to show my site logo (the image in the header).

Is this because my logo image is less than 200 pixels high? Site is https://nomadphilippines.com/

I searched and couldn’t find an answer to this, it’s also not under general settings, and not in WordPress SEO by Yoast or All in One SEO plugin settings, tried both of those.