Did you write this or have Claude do it? You've never used an em dash in your comment history and this doesn't sound human. Are you trying to use it for translation?
I feel this way too, but get occasionally reminded that the vast vast vast majority of the world equates The Internet with mobile Safari or Chrome and hasn't thought about Firefox since a relative last installed it for them 12 years ago. It's an "old browser" in some people's heads.
Personally it's the same way you look at a thing and get a mental sense of "this is that thing" without having to scan every detail right away, you look at a chunk of a sentence or words and get the sense of its meaning, and you can vocalize that in your head if you want to
I think whatever Javascript you made your AI write to do that is causing scrolling to be incredibly laggy on a phone and warm my entire device; Pixel 7a in Firefox.
edit: it's something you (Claude) are doing with text rendering. Zooming in on any text makes it exponentially worse.
It's obvious when you don't give a shit about design. It's extremely obvious when you lie about making something that a machine output when you don't give a shit about design yourself. Everybody sees this.
My bad, I had skimmed the wiki to confirm but I did misinterpret it as only storing NBT data for user-placed blocks, regenerating the rest. It makes sense why that wouldn't work.
I think "storing deltas" based on seed is largely how Minecraft saves the level already, but you could probably strip out a bunch of useless metadata to get it smaller