Is there any way to sort posts using the blog shortcode to display by Tag (as opposed but similar to sorting by Category)?
Do you mean this?:
Or do you want to choose a tag from which category posts will be displayed?
Thank you for getting back!
I want to use a shortcode to display which posts will appear on a page, by their tag.
I get the filter option from the front end, but I need an option on how to set it to display that way from the shortcode.
There is no shortcode for that.
As a workaround, you can use Query Loop to display posts with a specific tag: