If your PC get space, better complete install Office 365 pro plus only. That will update to Office 2019.
After that, change update setting, to let you choose to install.
If come up outlook update you don't want, right click, hide it. it won't come up again.
This is the only way to keep on get new version of Office update and new feature update.
The only update for complete pro plus version is security update. Otherwise, just choose Word, Excel and PowerPoint update won't take much space.