32GB is a great amount .. hopefully it's 2 x 16GB sticks so IF you start getting into photo or video editing or similar that requires a lot of RAM .. then you can easily upgrade to 64 with 2 more 16GB sticks
Gaming .. though most games, 16GB total RAM is "enough" .. I noticed a marked improvement in game "smoothness" going from 16 to 32gb's though I couldn't quantify that with actual numbers . .only gameplay experience... even though looking at task manager, I'll see maybe 13gb used playing Hunt:Showdown of which is a pretty demanding game