How to display a list of posts of the current category in the sidebar?

Question

Web development

Good afternoon.
Can you please tell me how to display a list of all posts in the current category? So that being in the category itself or in one of the entries in this category, you can see a list of all entries from the same category. For example, in the sidebar, place this list, such as "All articles of the section."
I would like to solve this with one code / widget, and not placing a widget under each category separately.