They built it from scratch and not on electron bloat so it is a much better foundation. It will take a long time to reach parity with vscode but when it does it will smoke it.
It is an editor made for people who are used to double-clicking individual files rather than opening a folder in VS Code, so they close and open their editor dozens or even hundreds of times per day.
Let's say VS Code takes 5 seconds to boot.
Some programmers may argue: "yes, I spend 3 hours on a project or just leave it open overnight, so 5 seconds per week is nothing"
But here is not the case, it is for programmers who come from Notepad/Sublime/Notepad++/emacs/vi, and who opens a single file and closes the editor right after.
If you work 2 hours, maybe 4 files per minute, this means 120 * 4 openings = 480 openings.
It means you would have wasted 2400 seconds (40 minutes per day!) waiting for VS Code to open (about 33% of the 2-hour work session spent waiting)
Yes, like with Notepad or Zed, you lose some features like Colors or Syntax checking, but still, time is the most precious thing in life.
For users who come from very advanced but slow text editors like Microsoft Word (used in coding exams: https://stackoverflow.com/questions/76102874/single-and-doub... or programming courses: https://youtu.be/0TVugOJtAiU?t=162 ), this is truly revolutionary and life-changing.
How can any software developer work when they need to open and close 4 files per minute? I have never met or heard of anyone working like this.
Instead of learning from what worked and fixing what didn't, they just threw everything away and wandered off in some totally different direction. They did the reactionary kind of learning instead of the theory-building kind: https://xkcd.com/242/