Neither of the artists has ever done Yuri before and the introduction of the work doesn't use the word Yur but the friendship so I wonder why is this work tagged as Yuri? Did at least one of the characters fall in love in the following chapter if not then I would suggest tagging it with subtext instead of Yuri.
The Bookwalker page does tag it as yuri, as well as romance. The Comicwalker page does not, admittedly (though it did have a "romance" tag before the website's redesign); looking at other sites that sell the volume, the tagging is actually pretty inconsistent in this regard. But the publication it's in, Comic Beam, publishes a number of yuri manga, as you can see from its page here, so I can't imagine there would be publisher pressure or anything to make it "not yuri."
In addition, I don't think it's true that neither mangaka has done yuri. The writer also did this oneshot, basically a comedy about a "yuri death game," as well as a previous series that at least on Twitter they claim to be yuri by the end (I haven't read it myself, maybe I should?).
Finally, while I understand the word "love" wasn't used, I really can't interpret Itou's reactions in chapter 2 in any other way lol. When you're having a meltdown over another girl getting close to you and thinking about how good she smells, that's not friendship. So while I do think it's kind of on the yuri/subtext borderline, there's enough there that I'm comfortable calling it yuri.
Cool thanks for your reply now I can read it reassuredly without worrying about friendship ending
