This might be controversial, but I want yet another code editor.

Hear me out, I write very little code, but when I do, they are usually in widely different programming languages, and many of them have a comparatively small user base, like Haskell, Ocaml, Lean, Agda, and Rocq. Most of the time I write LaTeX and/or Typst all day, so I need:

1. an editor that sandbox really well, there is no way I am trusting all my coding environment with my entire user space.
2. an editor that don't require much tinkering: if it can get to 80% there, I am willing to learn the rest, but I don't want an editor that get 20% there and force me to pull 80 different package just to do things.
3. preview LaTeX and Typst within the sandbox, ideally just in editor, so I don't need to configure synctex.
4. reasonable support for comparatively obscure languages
5. not controlled by a big tech like Microsoft.

So far, I am only able to find vscodium in flatpak that is close to my desire, but it is still mostly controlled by Microsoft.