This is worthy of some sources, no? People on HN, technology professionals, might hate office. But we're not majority and I've never seen researched/polled numbers about hating office...
I doubt that there are any reputable sources you could find that aren't shaped by bias (of MS or competitors). However, I have worked in a non-IT related job for years and about 90% of complaints about software we use would fit into one of two buckets
1.) Microsoft Office
2.) SAP
I know this is merely an anecdote, but it aligns with my personal experience + with the experiences of friends and family
