Terribly illogical Joomla or how to deal with an alias?

Question

Joomla

Hello!
isso.su - at the bottom there is "Interesting ...", where there is a preview of three articles from the site's blog.
By idea, the blog category is "articles" with the alias "blog". However, when clicking on an article, an extra "test1" appears in the link, for example, isso.su/test1/93-weatherproof-vintage-sweater . Categories with this name do not exist at all, so I don't understand Joomla's logic... And it puts this postscript into all articles.... I looked in the category settings and in the articles themselves. Nothing.
Any thoughts on where this link came from?

Answer 1

Create a category for materials, put materials there. Then create a new menu (for example "Hidden menu"), in it the "Interesting" item of the "category blog" type and set the desired alias. After that, the link will be "/your_alias/stuff". You can remove test1 by creating menu items, so this is not an option. Wherever the sites have news or other sets of articles, I do so.