What are the pros and cons of Microsoft 365 and Apple Pages?

If you are producing documents you need to send to people who are using Word, then it is best to use Word yourself. Pages is free, but you have to convert its native format to Word format, and the end result may not perfectly reflect what you intended, so you may want to avoid having to deal with that.

LibreOffice is free and has a spreadsheet, word processor plus some other stuff. It's as good as Word and Numbers and is, IMO, better than Pages if you do large or complex documents. Download it and try it.