We have 'native' text editors. Sublime Text is very similar to VS Code in many ways. But with Sublime I haven't got up and running writing, running, debugging code in various languages like I have in VS Code.

The whole experience is important. For many, it's more important than the individual 'feature' of being light on resources.

I currently ignore the fact that VS Code is 'heavy' as text editors go, because it's so much lighter than e.g. Visual Studio, leaving me much more RAM free for some of the code I'm running to gobble up and use for its own ends.

I'd prefer lighter 'weight' - in terms of RAM and CPU usage - but I'm not tempted back to Sublime yet.

BTW I'm a vi person, so I'm using vi keybindings in VS, VS Code, Sublime - and anywhere else I can do so. I love Vim's speed, but I can't Get Stuff Done in it like I can in more modern editors. I mastered the keys, not the inbuilt windowing system, scripting language, etc.