Works for Assembly and JCL and REXX as well, and if you don't mind turning off some of your local LSP support like header resolution and the like, also C/C++ and Java and Shell.

The old guard mostly still prefers ISPF though cause they've become really fast in it not unlike a Unix greybeard is gonna prefer something like vim.

I'm sorta torn on it. I like using the 3270 environment cause I can get around to different places a little easier than via vscode, but if I'm editing a lot of large files, it's nice to be able to see more code at once and have them open in multiple side by side tabs. You can do that in ISPF, but it's a little more unwieldy and you have less dynamic control over font size.