Many businesses out there do actually use a lot of the features that Office provides. We receive hundreds of spreadsheets from our customers every week. Some send us simple spreadsheets made in Office 2003, and some are huge XLSM files that use VB and macros. We would go out of business fast if we didn't have MS Office installed on our workstations, and a pretty good number of the features are used. We rely on them for business so we have to make sure we can open whatever they send us.
I used to test out the Office alternatives every couple years or so but I've stopped because it's always a waste of time. It's never taken more than 2 minutes to see that they can't come anywhere near replacing Microsoft. It would be really really nice if there was an alternative, but nobody makes office apps that are anywhere near compatible.
The only good thing about this whole thing is that we were actually able to get rid of the Access databases that were mission critical for years, and I no longer have to install the Access runtime on our workstations.