People suggest this over Zed very frequently. In my experience Zed is way more mature and stable. That being said, it's no one near as usable as neovim with a good plugin setup, let alone a mature ide like Jetbrains products.
Jetbrains IDEs might be slow, but I'll get a hell of a lot more done in 8 hours with it. Once you learn to use the features well, it's incredibly powerful. I love vim, but generally use jetbrains.
If Jetbrains took 500ms to load a file vs 1ms to load, my productivity isn't going to change dramatically. It's fast enough. Yes initial indexing is slow, but it's easily worth it.
All this being said, I think Lapce is very informative as a resource to anyone trying to build an editor in rust.