Another advantage to plain text files: source control. You can check your writing into git and get a history of all your edits. It’s something programmers take for granted, but it would be amazing if this got more widely adopted outside of tech. The number of files with names like “Report Final Final draft v3.docx” is truly staggering. “Git for everything“ would be a multi-billion dollar startup easily.
One of the big things I love about Dropbox is automatic version control of the file. Google docs has a similar feature built in too I think.
First thing I do on a new device is setup my mega shared drives - and there is a lot of plaintext files there!