I've been using Distill more and more for creating HTML reports and documents with interactive features that I can easily share as email attachments/links, etc., and I really love it! One challenge that I'm running into (and this is certainly not specific to the Distill format) is easily collaborating with non-R users on these documents. For the most part, the collaboration would consist of edits to the text and comments and ideally be achieved in Word.
The R Markdown Cookbook discusses the redoc package as a possible solution: https://bookdown.org/yihui/rmarkdown-cookbook/word-redoc.html. Although the package appears to not be in active development at this time.
I'd love to hear any ideas or workflows that others have had success with for this type of collaboration/editing as I'm sure I'm not alone with this stumbling block to using more R Markdown in my work!