Civ VII RAM usage - how big can you go?

Building a new PC, in part because my old one is too old to run Civ VII. I got to thinking about how much RAM to add, so I fired up my old one with 16GB. Opening 20 Chrome tabs (2GB), a large Illustrator file (4-5GB) and then starting the biggest Civ VI game I could took me up to 95% usage - fun!

So my question is... How much RAM have you seen Civ VII use? Biggest map? Late game? What's the limit?