Since WordPress 5.0, some of the more rectangular featured images (from blog potsts) are squeezed to fit in ‘latest post’ thumbnails on my homepage: http://rogerklaassen.com/wordpress/
Before, the featured images were cropped to fit – which I prefer.
I use the Gutenberg editor since WP 5.0 release. Has this got to do with it? Is there extra CSS code to prevent the squeezing?