When installing the office suite, can you choose to only install some programs (like Word and Excel equivalent) rather than the entire suite. I have storage limitations on the PC.
If you do not need the latest features you can work on / install a version 4.x.
Versions 5.x definitely need more disk space.
You may find the following similar question useful. https://ask.libreoffice.org/en/question/2464/singular-download-question/?answer=4170#post-id-4170.
Ms Office is a set of programs package together with a similar look. Hence Word and Excel are separate packages and can be installed individually. LibO programs share most of the code, so the saving removing just writer say, would not be great.