If you can't figure out LIbre Office you shouldn't have your job. Hating any change is just being an evolutionary inferior waste on society.
I'm no power user, but I can figure out LibreOffice just fine, thank you...
HOWEVER
Can you point out to me how exactly I am supposed to get it to integrate seamlessly with SharePoint etc. in an enterprise environment?
For better or for worse, the bulk of businesses out there are using products from the MS stack for collaborative working. To such businesses, if a F/OSS alternative to MS Office doesn't integrate seamlessly without major hackery then it isn't just a non-preferred alternative, it is a waste of everybody's time to suggest even putting it forward.
To be fair, it could be argued that, given their market penetration, Microsoft should be forced to license the SharePoint integration APIs on a FRAND basis, such that the F/OSS alternatives can join in the party and stand more of a chance in the corporate arena, but how likely is that to happen before MS's apparent goal of getting everyone (particularly in corporate environments) onto subscription-based productivity tools is realised? On the same note, how likely is it that MS would even comply?
To be honest, I prefer both OO and LO over MS Office, primarily on the grounds of MSs UI changes (yes, I am as unimpressed as a lot of people are with the ribbon. Don't get me wrong, I can find my way around it fine, and, up to a point, understand why MS felt that forcing it down our throats was necessary. I just prefer the "classic" interfaces of older versions and their alternatives), but I am a realist at heart and as such I don't foresee the death of MS Office (other than by migration to its "big brother" in the cloud) any time soon...