One option if it's just like 1 file at a time is to use WinSCP with Sublime as your default editor and just open the file, edit, close, but again, obviously not great.
I haven't used it in years but I recall it mostly working.
In fact, you are. It runs the plugins on the remote system. Which, while nice for UX, made me upgrade my blog's droplet from 1GB to 2GB memory ($5/month -> $10/month). But I figured it's worth it because it lowers the barrier of entry to writing, and anything to make the process of writing as painless as possible is worth it (and I'm still publishing once/week so I guess it's paying off)....
Why aren't the Atom people working on VSC instead?
https://github.com/atom/atom/graphs/contributors
Looks like the original contributors have mostly moved on to other projects, and activity is significantly diminished, but it's an open source project and they've not gone out of their way to block the community from continuing.
Why does Visual Studio still exist?
Why does Sublime Text still exist?
Why does Notepad++ still exist?
Does Atom exist if you never need it again or the project is never maintained?