I've also been seeing this more lately (kind of related to this: https://kagifeedback.org/d/8149-reddit-pages-are-being-translated-from-english-to-spanish-and-then-shown-to-me-as-spanish-results-in-search )
Earlier today searching for "Tamagotchi Paradise", I got non-Reddit links for a variety of sites, all in MX-ES. The links were primarily to the Mexican versions of these websites, and it was listing Mexican retailers, etc. However, when I re-ran the queries to try to get screenshots, I'm now correctly getting US English results as expected. So maybe it's a transient issue, or someone at Kagi pushed a fix out on a Friday night (you rebels!).