Looking for collaborative editors in particular. Two people editing at once, on different computers. Each person has their own copy of the file, on disk.
I'm curious about your use case?
This is a pretty common use case. Remote pair programming, interviews, etc, all rely on this same basic idea.
Authoring Latex documents. I want a non-browser alternative to Overleaf. When the paper is close to done, me and my colleague are on voice call, editing the same file. But we both want to be able to compile it to PDF, to be able to see the figures.
Both VSCode and Intellij can perform this function.