What I miss from vscode is the remote functionality, can you do it with emacs? For neovim there is distant.nvim, but idk if it is mature enough and configuration seems a bit annoying...
Emacs already does that with TRAMP via SSH -- You just open a file like /ssh:user@server:/etc/hosts the main downside is if your connection is laggy Emacs will lock up momentarily. There is an ongoing effort to improve the multithreaded-ness and async-ness of Emacs to make it nicer
I use TRAMP to edit code loaded on robots occasionally. One advantage compared to VSCode is that it doesn't require the installation of anything onto the computer you're connecting to, since it uses the usual linux tools to work. But it can freeze up once in a while.
Well, I guess? Using TRAMP with large projects is not a pleasant experience. It works great for one-off files and remote bookmarks etc, but for working with large projects you're better off mosh/ssh-ing into the server and using Emacs there. With things like term-keys [1] you can use all the keys there as well. Basically only missing out on images and variable fonts, both of which are none issues for me at least when programming.