docx files have lots of complex formatting information, and different apps will interpret it subtly differently and that can screw up the composition. Also docx is focused on paginated documentation by default in most programs, and I prefer to write freely without page breaks.
I like using markdown files for my notes, but including images means having a second file and or folder. Markdown files are just focused on content, so different apps interpreting it differently isn’t really an issue. And pagination doesn’t enter into it at all.
Is there a file format that is halfway between these two? I would like to be able to write simple content focused format agnostic notes, but then including an image becomes a huge hassle.