I use Kagi Maps some of the time, but often need to break out to Google Maps. The most common reason for me to jump out to Google is to send the map location to my (Pixel) phone, which is one of GMaps' quieter but more useful features.
In talking with Vlad, he suggested that it might be possible to add this to Kagi Maps, so I'm raising it here to be tracked.
In GMaps, when you're looking at a location or directions, there is a "Send to my phone" button available -- pressing that pulls up a list of my known Android devices, and selecting one of those forwards the location to my phone's Google Map function.
If there were a button with similar capability in KMaps, that would probably reduce the number of times I resort to GMaps by at least 50%.