It does the very basics good enough. Anything other than that is causing more headache to the user.
Just one example, if you use remote terminals to access your worskpace's files. Libreoffice has some well known bugs on remote opening files which it refuses to fixes, which cause the LibreOffice suite to crash and refuse to start. Imagine suddenly becoming unable to open any kind of Word, Excel etc document. Now imagine a 500-1000 company all using Libre Office...
Legions of people have reported this, among many others, bug but are still stuck waiting for years already for when it will be fixed.
Contrast that to Microsoft Office, which although is not perfect, at least because it is a paid/subscription product Microsoft has a vested interest to fix critical bugs.