Sure... it depends on how you set up the widget. Instead of adding it to the global widget area, add it to categories.tpl
Then add another inside category.tpl, which is for each individual category. Then you can restrict it to specific categories (and have it only show up on specific categories).
If you want category-specific recent posts to show up on every single category, you might need to create a separate widget for each category 😬
Yes, but I cannot set it this way, because category restriction setting does not exist in "recent cards" widget. It exists in all others...
Or, do we have problem/mistake in our recent cards widget?