The visual bugs are annoying and the document-syncing with multiple editing people feels like 2005. As of last year, it couldn't even render a .docx file properly. It tried to render input fields as images. LibreOffice Writer opened the doc better than /Word/ Online.
I am a student who has access to office online and have tried to encourage my peers to use it for group projects so that we don't have to use Google. However after repeatedly having to make up excuses for their neglected product, I have given up and just request anonymous editing links for Google Docs.
You dont know where files are saved, you cannot connect a file to a file, lots of options seem to be disabled (e.g. collaborative Excel on Teams).
Did you miss an /s? I just tried using this again and it's slow and buggy. Office has a lot of advantages, but collaborative document editing is not one of them.