@NoahBoswell, for some perspective:
At my institution, in production, we are still 100% classic quizzes. We are a small Canvas team and our confidence in New Quizzes' reliability and the timing of everything has not been ideal for us to do it any earlier. We have had too many other things pop-up that have required our attention.
In the second-half of Fall 2025, my institution's Canvas team will start to explore New Quizzes more intentionally.
After the beginning of Spring 2026 rush, we will put together internal documentation and communications and provide faculty with the opportunity of using it (their courses will be added to a sub-account that has it allowed) in Summer 2026 and Fall 2026. We will then expand in Spring 2027 and hopefully go 100% live after that.
-Doug