I had a recent total knee replacement with Mayo JAX. I had also been consulting with the Oncology Department as I had active Merkel Cell Carcinoma treatment going alongside immunotherapy treatment with the Veterans Hospital. In the kneecourse, I had MAYO MRIs and x-rays, and most times, I was able to see results from the first test before I had the second test. During my cancer treatment, my MAYO consultation notes were often posted before I got home after the office call. A PET-CT is a new one though, not experienced in that. I pray you have a similar satisfaction level as I had with the timeliness of reports.
As @tomrennie says above, the MAYO patient portal is very cool and will explain terms. I sometimes would copy the whole radiology report and drop it into a duckduckgo AI browser (a bit more private than google or other browsers), and it would actually "translate" the whole thing to an understandable level. Of course, recognize that some of these AI tools 'hallucinate' or get things flat out wrong, so the conversation with your doc is critical.
Please know my family and I pray for all of our patients here and know this is a good spot for support!

Sam K