I'm not sure if this is a limitation of apple maps or if Kagi Maps can overlay, but currently local results on maps shows related links e.g. website, call, directions, as buttons. However even when expanding a single result these still just say "Phone" or "Directions" and do not provide the additional information like the actual phone number.
On mobile this makes sense as you can just click the phone button to make a call, however on desktop I'd like get the actual phone number so I can then make a call with my phone.
Note this is also only the case when the maps overlay is expanded. In the Kagi web results, the maps widget does actually show the phone number.
Examples:
