[pokeyrule]

I think that what makes Cursorless "really different for editing/writing code" (per OP) is that it is a voice-controlled structure editor focused on maximizing efficiency. Cursorless leverages tree-sitter to maintain an up-to-date syntax tree of your code, and then allows you to manipulate your code using voice commands that target structures like functions, classes, arguments, etc. Cursorless also has an emphasis on composable / chainable commands. For example https://www.youtube.com/watch?v=EwdpPN-21-g . As you become fluent, you'll find that the emphasis on higher level syntactic constructs and chained commands enables you to program faster than you could using a keyboard, without needing to worry about low-level details like cleaning up commas, selecting functions with a mouse, etc.

But as the creator of Cursorless, I'll allow for the possibility that I'm slightly biased