Need basic info about Office 365 for Mac
I have researched Office 365 for the Mac on the web but I'm a bit confused as to what exactly it is.
Is it cloud-based only? I read that its docs are automatically saved to SkyDrive, which I have no interest in. Must I use SkyDrive if I buy the Office 365 subscription? I want the apps on my computer and I want to save the docs to my hard drive.
To backup, I clone my work iMac's hard drive to an external SSD. When traveling, I boot my MacBook up off the SSD, so I have the exact same environment to work in. Will I run into constant re-activation problems with Office 365 if I work that way? I'm worried that Office 365 will count each boot as a different device and disallow further activations after the 5 devices that are included in the subscription.
If I buy and install the one-time purchase Office Home & Student version (iow, not the subscription) on my iMac, will it not allow me to activate it if I boot up off the SSD on my MacBook?
Thanks in advance for any advice & info.
MacBook, macOS High Sierra (10.13.4), 2017 MacBook Retina