@NestorMatthews ...
You should be able to go to "File" >> "Print". Then, instead of selecting your printer, choose to print/save to a PDF file. This will essentially allow you to save it as a PDF instead of printing to paper. Also, @chadscott created a userscript a while back for Classic Quizzes that you might want to look at:
Print Canvas Quizzes UserScript - Instructure Community (canvaslms.com)
If you are using New Quizzes, you can use the print option as described in:
How do I print a quiz in New Quizzes?
Again, you'll want to select to print/save to a PDF file rather than outputting to your printer. Here's an example from my own Windows 11 laptop:

Hope this helps a bit! Good luck!