A family of Microsoft word processing software products for creating web, email, and print documents.
Check if your default printer in Windows is one of the virtual PDF printers / converters, such as Microsoft Print to PDF. Of course, at the time of printing, you can choose a different printer (via File > Print in Word). You can also change the default; for more on that, have a look at https://support.microsoft.com/en-us/windows/set-a-default-printer-in-windows-e10cf8b8-e596-b102-bf84-c41022b5036f .
Note that if you are using the online (web-based) version of Word, you will always get a PDF which can then be printed.