But looking deeper it's getting harder and harder to justify Office:
For presentations I prefer Keynote. It's not perfect but still better. Spreadsheet I use Google Sheets, inferior to Excel but good enough and live collaborating is unbeaten and this is my number one requirement.
Word is the only one where is no substitute for. Google Docs doesn't have paragraph numbering and misses a review mode which is super important when negotiating contracts.
So, Word is Office's last lock-in.