Photos copy typing

Microsoft word is not behaving properly. Save documents when I open them again have a different format and font, small text size letter and poor plain style, than the originally format they were saved. Also Trying to create a new document is a big issue. I have and iMac 2020, I installed and installed Microsoft word 365 version 16.66.1, which I purchased at the beginning of this year. I upgraded my operating system from Monterey to Ventura., but before doing this changes, Word was already acting up. It doesn't follow simple commands