Gurman says “Apple cancels 'M2 Extreme' chip”
https://9to5mac.com/2022/12/18/gurman-apple-cancels-plans-for-high-end-mac-pro-with-m2-extreme-chip-m2-ultra-mac-pro-still-planned/
This is what I thought. Apple is having a problem with the 4 die M1 or M2 chip and that is why we haven’t seen a Mac Pro on Apple Silicon yet.