I have experienced the opposite with Zed, which has its own bespoke UI framework - it behaved somewhat unexpectedly and didn't work exactly how I'm used to an UI to behave giving me this uncanny feeling.
This kinda shows you how much effort and experience goes into getting an UI framework right, and the long tail quirks (of which there are a zillion) matter for UX, and while I appreciate they took on the task of breaking away from the browser, it's understandable why someone wants to ship an app on time and budget goes with a web based solution.
Sorry if that wasn't clear, that was the point I was trying to make - Zed's UI worked oddly for me in subtle ways that I can't really give an example of right now, but created a sense of discomfort that made me give up on it after a short while.
This kinda shows you how much effort and experience goes into getting an UI framework right, and the long tail quirks (of which there are a zillion) matter for UX, and while I appreciate they took on the task of breaking away from the browser, it's understandable why someone wants to ship an app on time and budget goes with a web based solution.