When a Wikipedia summary is shown on mobile, the links in that summary are difficult to distinguish from the surrounding text.
This can also lead to user confusion. For instance, I tried to open the Wikipedia article the preview was from, and since the actual Wikipedia link was scrolled out of view in the expanded preview box, I tried tapping the text itself. I was briefly under the impression that this had worked as a page started loading, but in fact I had coincidentally tapped one of the links in the text. I hadn't even noticed that there were links at all.
Here are screenshots, in both dark and light mode:


The links should be easily distinguishable from surrounding text and the user should immediately understand that there are links without conscious effort.