NeoVim supports plugins written in modern languages without a Vim script shim. Vim script is utterly awful, and the sooner we can all pretend it never happened, the better the world will be.
NeoVim can be configured and extended with lua a language that many people actually like to use.
NeoVim is built client/server style, like VSCodium, so it can do the same remote/local mix and match tricks. Notably, VSCodium works nicely as a front end for editing files with NeoVim.
NeoVim is somehow actually faster. vim was no slouch, but a full rewrite seems to have added some…ahem…vim.
luaa language that many people actually like to use.