A family of Microsoft word processing software products for creating web, email, and print documents.
I had the same issue but I wasn't able to find the solution in desktop and dock, instead it was System Settings/Control Centre and then right down the bottom there is an option to select "Recent documents, applications and servers" I chose 10 from the dropdown menu and then restarted word and the recent files showed up now. Alternatively just search "number of recent items" in system settings and it will take you there (still need to scroll down).
I doubt if this is something that we all collectively changed and there is something wrong in the system somewhere so this breaks.
Thanks so much for pointing me in the right direction.