@m1rmiller @blbird33 -
I want to congratulate and commend you for your desire to take care of yourselves and to protect your beautiful organs. My transplant was 14 years ago and the one sure thing that I have learned over those wonderful years is that my transplant team at Mayo Clinic Rochester is the first and only voice that I listen to with regards to my overall post-transplant health. If my team recommends something, I will consult with them when I (or my PCP) have questions.
I am well aware that there are many other points of view and opinions floating around, and that it can become confusing when everyone is speaking at once.

Here is the simple straightforward answer to your question about difference between the Noravax and the Pfizer/Moderna vaccines from Johns Hopkins:

- What to Know About the Updated COVID-19 Vaccine for Fall/Winter 2023
"The updated Novavax COVID vaccine is authorized for people 12 years and older. Unlike Pfizer-BioNTech and Moderna’s mRNA COVID-19 vaccines, the Novavax COVID-19 vaccine is protein-based. It’s an option people can consider if they are unable or choose not to get an mRNA vaccine."

https://publichealth.jhu.edu/2023/what-to-know-about-the-updated-covid-19-vaccine-for-fall/winter-2023
.
Please refer to this link to learn more.

Have you consulted with your transplant team, yet?