Found a really good source including a picture of the first edition. It looks like that they were mentioned indeed in the 2nd edition to be more dog like in a sense of voice “yappin like a dog” and smelling like damp dog. Their visuals however were not really dog like. So I assume it was maybe both a mistranlation and an over interpretation of some texts from 2nd edition or just pure free choice from the author of this anime. https://www.belloflostsouls.net/2022/01/dd-monster-spotlight-kobolds.html
At least link the full article and not just the headline… smh. Here is also the follow-up article with comments from Firefox’s CTO. https://www.heise.de/en/news/Firefox-defends-itself-Everything-done-right-just-poorly-communicated-9802546.html