I really want to move off VS Code and start using Zed, but unfortunately the text is always extremely blurry. It's just unusable. I check back on the GitHub issue every few months and it just has more votes and more supportive comments, but no acknowledgement. Hopefully someone can rescue us from the sluggish VS Code. https://github.com/zed-industries/zed/issues/7992 I have a 1440p monitor and seeing this issue.
Apple has removed support for font rendering methods which make text on non-integer scaled screens look sharper. As a result, if you want to use your screen without blurry text, you have to use 1080p (1x), 4k (2x 1080p), 5k (2x 1440p) or 6k screens (or any other screens where integer scaling looks ok).
To see the difference, try connecting a Windows/Linux machine to your monitor and comparing how text looks compared to the same screen with a MacOS device.