I feel these really tuned out Vim/NeoVim setups are the modern equivalent of really tuned out Linux setups, as in they are something you can spend a lot of time working on and creating some very hacker like cool setups, but ultimately usability is not so great compared to a more full blown and integrated IDE like VSCode.
And I'm a hardcore VIM -user, dont' get me wrong, but making these configurations where you combine like 10-20 different plugins, it's gonna be a whole incoherent experience with many different thought paradigms colliding easily.
I do love the idea of having something working in Vim as perfectly as in VSCode for example, but the actual experience is not there. Ultimately things like C++ code completion and intellisense require a lot of work and code to get right, and NeoVim/Vim attempts are not there yet, for example I had to give up when the only way to figure out what compilation flags a project uses meant configuring it manually.
But they sure are cool for hacker-type setups and look cool for sure.