In the absence of forced company policy, my experience of word processors have generally been one of rather poor compatibility. I assume company policies are what helps people interact through word processors?
I personally like Org to compose the copy of a document. It's a plain text format that makes sense to a lot of people, the reference implementation has most of the powerful features I'd miss from word processors, and it's reasonably easy to script missing advanced features.
I second emacs org mode. I've started to really buy into the everything is text nix philosophy. I use it for so much, my website skeletons are exported to html from org, my data science workbooks are org, my resume is org I export to latex, and so on.
I also use libreoffice, but mostly only when forced to deal with docs or PowerPoint etc. I think libreoffice does a lot of things right and am glad to have their wysiwyg when I don't feel like thinking.
Also, I think it's shameful so many professors require docx..
I personally like Org to compose the copy of a document. It's a plain text format that makes sense to a lot of people, the reference implementation has most of the powerful features I'd miss from word processors, and it's reasonably easy to script missing advanced features.