But one thing makes me uncomfortable regardless of its early state: It's gigantic!
It's a 55 MB executable. You could fit at least one hundred full blow almost self contained (CLI) text-editors with the feature-set of Lapce in that size…
What is going on there? Does it bundle an operating system, or even a whole EMACS distribution in that binary?
Besides that it feels like VSCode. Not regarding speed, Lapce feels faster for sure. But with its custom GUI there is actually no gain regarding UX compared to any "desktop-webpage-container" (a.k.a. Electron app), imho. "Native" applications that don't feel native just "aren't native" — regardless the technology used.
The other but related issue is (even it's not really on Lapce) that those Rust GUI toolkits are imho light-years away from being production ready. So not only that Lapce feels "not native" (which is bad on its own, as it's than the UX of "just another webpage") but additionally it will likely take years just for the used GUI toolkit to catch up with the state of the art.
Of course I wish the authors luck with their project! But it looks to me like it'll be a quite long journey up to the finish line. So they will also need some staying power. Especially as there seems to be some competition¹ in the space of "VSCode alikes"…