Does 32GB RAM help with stuttering in heavy open-world games?

Yes, but only if the stutter is caused by running out of memory. Games like Starfield and Microsoft Flight Simulator can use over 16GB, and with 16GB Windows starts swapping to your SSD, causing micro-hitches. If your RAM usage is near 90-100% while playing, 32GB will smooth that out. But if the stutter is from a weak GPU, slow storage, or a CPU bottleneck, more RAM won’t fix it.