With the recent addition of zen mode, it may be worth considering adding a centered editor layout option:

This is something that the Typewriter atom extension adds, and I see it being particularly useful in zen mode and when writing text documents, such as markdown. A centered layout would apply both a softwrap and align the wrapped editor content to the center of the current editor pane.

The major downside is that this would add an ui configuration that we would have to test and support. The centered editor layout also doesn't fit well with all VSCode ui paradigms