That feature is very handy, and if you haven’t seen Bluefrogs suggestion
This helps create wiki-links on the fly, and then you can use the contextual menu to convert if you need. But this includes important a backlink.
The edit > inert > item link is also pretty handy for directly creating markdown links, or use control-cmd E, but not quite as smooth as the [[ method.
I would love to see an option of all links being created as item links as they are more robust and iOS friendly.
Bear does this exact thing, so it’s definitely possible (but of course Bear is not DT nor has any of it’s superpowers).