This is another case where the 80-20 rule comes into play. Almost everyone could switch to LibreOffice, but there are edge cases where Microsoft works better.
I uninstalled Microsoft Office and installed LibreOffice on my work laptop about a year or so ago. I'm a web programmer, so I use it only once every couple of weeks, to read and sometimes edit Word and Excel files from coworkers. So far so good. I even made a user guide with Write, including drawings made in Draw. I published it to PDF, so compatibility doesn't come up. Still, I liked using OpenOffice more than Microsoft Office, even ten years ago.