Is 2x16GB memory better than 4x8GB for most people?

Yes, two sticks are easier on the memory controller, leave room to upgrade later, and are more likely to hit rated XMP speeds. Four sticks can look cool but often require tweaking or lower speeds to stay stable. The real-world performance difference is tiny for gaming and everyday stuff, but four sticks can be a headache on budget boards or with high-speed DDR5. If you’re building new, just buy 2x16GB.