My MacBook Pro 16 is using 18 GB of RAM for programs and 11 GB of RAM for cache. I'm running my production stuff on my M1 mini. Quite a big step down on RAM from my Windows desktop with 128 GB of RAM. I'm thinking about an M1 MAX MBP 16 with 64 GB of RAM but I'd have to wait until late January or early February for it to arrive.