>>> " . . . as Windows 7 is to become obsolete would I still see my photos on my Windows 7 laptop and would I still be able to use Open Office on my laptop?"
Windows 7 will continue working, with full functionality (both of the operating system itself and of any programs that you use with it, such as OpenOffice) now that Microsoft's 'support' for it has ended.
Apple offers a free word processor for iOS devices:
https://apps.apple.com/us/app/pages/id361309726