I can't really understand that if there is a patch made which works, why it has not been merged into master yet?
But more specifically since it was called a hack, I assume it's patching a function to return incorrect information that works with OneNote but could break other software that legitimately needs the information instead of truly fixing the issue.
And I think the .one filetype is an open format. So there shouldn't be any vendor lock.
It's just a genuinely pleasant app to use. I just wish the dev team moved faster with features. Making a colored square shape is a pain. So although it can do most multimedia in a single file it's lacking in a robust shape tool.