I had to export from Obsidian to MS Word today (Academia runs on MS Word) and copy pasting from preview mode (after switching to light theme) still left me with a number of weird fixes needed - and some figures did not come through the clipboard.
Installing pandoc or buying a MS Word plug in (or working in Ulysses) are nice options to know about but feel like overkill for a functionality (like export to pdf) that seems should be part of Obsidian.