is there an option in the post grid shortcode to “not” show the text excerpt (just the title, feature image and button)?
I’m afraid not. — This is because the post grids are a core part of the framework and the “design” of the post grid can be different in every theme. It’s setup with the file
content-grid.php and every theme could theoretically contain different markup in this file.
So, for example, if the [post_grid] shortcode had some sort of option to hide the excerpt, it means I’d have to make sure every theme I made had an excerpt in the design of the post grid. An example of a theme where this wouldn’t work would be Swagger. I try not go overboard on these options so every theme doesn’t end up looking identical.
You could target your post grid by copying content-grid.php to your Child theme and then using some sort of conditional tags to show or hide different elements similarly with how you’ll see I did with the global theme options currently in the file.