product pagination instead of infinite scroll bug in the search results

Hello,
I have found a bug in the “show all results” page of the search feature, which seems to be identical to my default “product archive” layout.
The difference is, I have set my “product archive” page as an “infinite scroll” and it works good.
The problem is, when I search for products using “search”, which is located in the header and click “Show all results” at the bottom of the widget, it sends me to that product archive page with the searched term, yet it appears as a page with pagination.
It is weird that in the HTML you can still find a class that should make it “infinite scroll”, though?
I guess it is some minor defect on the frontend.
Could you please have a look into it?
I’m sending you the login credentials for the page in the private content.
and also, attaching three screenshots with a description.
Thank you.