This got me curious, so I gave it a try. It opens instantly (as always) and parsing the complete codebase in the background took about two minutes. After that everything is practically instant and there is no problem searching through the code, finding references, code completion, etc. Reopening the project is also instant and it takes less than ten seconds to fully load the cache in the background. Since I don't know the code I can't really comment on whether everything got parsed correctly, but the random bits I tried seemed to be right.
This doesn't seem to be worse than the Unreal codebase, which 10x also handles with ease. I highly doubt that there is a codebase in existence which could bring 10x to its knees. It does use quite a bit of memory, but nothing a modern setup shouldn't be able to handle. Currently it seems to be about 4GB for both Unreal and LO each, with LO being just slightly larger.
This of course are extreme cases, so you can imagine what performance for "normal" projects is like.
Nah just some early adopters who found this post because it was shared on the 10x Twitter and Discord after it made the HN homepage. I don't know why none of us had accounts before, it may have something to do with the particular niches most of us are from (game dev etc), where HN may not be as popular as you might expect.
I only signed up because I saw a lot more questions than people reporting their experiences with it, so I figured you would like to hear from people who actively use it (and why). Some of us then prodded Stewart (the dev) to also sign up so he could answer the more specific questions.
LO has a reputation as an IDE-killer, as it’s so large and complex.