Don’t think it has anything to do with electron. VSCode is just the largest editor that people install extensions for, so it’s what makes the most sense to write malware for. If vim was more popular, I’m sure there would be more crypto mining extensions for that (I wonder how many there are? Surely more than zero?)
Putting the message in git puts the information closer to the code, since the pr isn’t in git itself but instead the git forge. You can for example search the text of git messages from the git cli, or come across the explanation when doing git blame. I sometimes write verbose commit messages and then use them as the basis for the text in the pr, that way the reviewer can see it easily, but it’s also available to anyone who might come across it when doing git archeology
It’s another c/c++ competitor along with rust and zig. https://odin-lang.org/