I'm using vscode for couple of years now. I have disabled all AI related features with "chat.disableAIFeatures" option and it worked really well in my case.
But I was convinced by this article to checkout zed mainly tempted by the promise of much better performance because it is written in native language instead of javascript. So to test it out I've opened https://github.com/microsoft/TypeScript/blob/main/src/compil... file and zed after "ctrl + o" command frizzed. Also when scrolling this file in zed there is noticeable drop in FPS, where in vscode scroll with checker.ts file opened is very smooth.
So I guess I'm staying with vscode :)
additionally there is currently ongoing effort to make main editor to be rendered with WebGPU instead of DOM nodes, which I'm really waiting to happen.