Earlier quoted context omitted.
most people like vs code and lots of companies have built on top of it so there must be some quality there that people like.
It's more that there isn't a single credible alternative. So, winning by default, not by merit.
VS Code (Monaco at the time) was developed by a small team largely in secret to keep it safe from other MS departments so it’s really not like other MS software. It has been safe from meddling for a while there is a chance it’ll be a victim of its own success.