No, I hadn't been aware of differences in compilation. (I know what
compiling is, I know that Linux may require compiling downloads, but
there my knowledge currently ends.)
I assume that that has to do with the time slices you mention.

The idea of a different partition appeals to me, although I can't
clearly see the consequences. But in a fews days a friend will visit
me who is experienced in Ubuntu (and other distros).

I hadn't yet noticed the limited options for word processors.
Moreover, I have the free previous version of a multiverse Office
suite installed. (The suite that I also have on my Windows and Windows
Mobile systems.)