I have a Canon R5, and i ended up with almost 800gb of storage in 8k raw, for a concert I did. I didn't even take that many videos as the camera overheated.

But a 4:20 video was 77gb. I have a 8bay(5 disks in raid 5) nas, but the performance isn't so good. Not good enough to edit, I use the 1tb nvme I have, but lots of swapping when I need to edit.