Does 32GB of RAM help your SSD last longer?

Yes, but it’s a side benefit, not the reason to buy more RAM. With 32GB, you’ll hit the page file less often, reducing writes and wear on your SSD. However, modern SSDs are tough and most people won’t kill theirs from page file writes alone. Reducing writes is a nice perk, but the main reason to go 32GB is if you actually need the memory for your work.