Questions about MS Word for Mac from new Mac user

I have just bought a MacBook, and have installed MS Office. I have two questions about MS Word that I'd appreciate any advice on.

First, when I type in 12pt font with zoom set at 100%, the text on the Mac's screen is significantly smaller than I am used to with a PC - it only looks similar when I zoom to 125%. As I have a PC at my office, I'll be moving between the two operating systems quite regularly, and would prefer not to have to constantly resize my Word docs. Is there a way I can enlarge MS Word on the Mac, or at least set it so that it always displays docs at 125% zoom, so I don't have to re-size them all individually? I have looked, but can't find a master zoom setting like this.

Second, and maybe slightly related - the toolbars in Word on Mac just go about 60% across the top of the screen, and there are several icons 'off the end' that are only shown when I click the little arrow at the end. I have tried to extend the toolbars by clicking the bottom corner and dragging, but they only drag as far at that 60% mark. Is there any way I can get the toolbar to stretch out longer and display all the icons that it includes? It seems like an unnecessary restriction when there is so much free screen space on the right hand side of the screen.

Overall, I'm finding MS Word on the Mac to be a little too compact. Any suggestions?
Thanks in advance.