Trying to decide what version of the Quest 2 to purchase (64GB or 256GB). Could someone tell me how much memory will a game like Saints and Sinners require. On the rift its around 32gb??
It's not released yet for Quest platform, so it would just be a guess at this point. Historically speaking, the Quest versions are compressed down to size ranges between 3-9GB per game.
You should be just fine with the 64GB version. However, if you end up buying/wanting lots of Quest games, then you'll need to start managing your installs. The biggest file sizes come from downloading 360 Media to Quest, since those do not get compressed.
So if you can avoid lots of 360 Media, then you're fine with the 64GB Quest.