There was Microsoft Write ( https://en.wikipedia.org/wiki/Microsoft_Write ) but Word/Office was NEVER bundled with Windows. I used Microsoft products from MS-DOS 5 to Windows 7, and that never happened.
Likewise (well a slightly earlier version of DOS since that’s what my high school ran on their ring token coax network, plus some (by that time) old college stand alones that you had to run something like ‘park’ to park the HDD head before powering off). In fact I’m pretty sure I’d written some of my course work in Word for DOS too. Feels like a life time ago now.
Anyhow, there definitely was an office suite (lower case O) that was bundled with some PCs. But as another HNer points out it was Microsoft Works rather than Microsoft Office.