> It’s a shame Nikon couldn’t use CFexpress Type A cards like we saw on the Sony A1 and A7S III, which can still fit SD cards in their ports. Of course, given that Type A cards are manufactured by Sony, it’s understandable why Nikon wouldn’t want to use their competitor’s innovation on their flagship.

I don't see how it is a shame. Nikon ensured users will have a better, more consistent user experience by going with Type B slots. Type A cards have half the theoretical max throughput [0] and cost more per GB. I suspect most people using a $5,500 camera don't put high importance on SD card compatibility.

I think Sony uses Type A CFe due to their small bodies.

[0] https://www.lexar.com/en/FAQs/what-is-the-difference-between...