While I haven't ascended to fully cursive coding, I do actually enjoy Fantasque Sans for this very reason.
It manages to kind of connect the letters in some ways that my eyes can better see single words as "tokens". After using it for a while, going back to a regular monospaced font looks like a speadsheet of unconnected letters.
I mean, are we sure the font used in that screenshot isn't monospace?
If you compare the two lines after the first comment, the columns seem to align quite well (though I cannot read some of that)...