You can't download more RAM, but you can increase how much is available.
I usually don't care about high RAM usage on my PC, since 32GB is enough for gaming as well as multitasking. The other day, however, I noticed suspiciously high RAM usage in Task Manager: 85–90%. At ...
Considering a PC upgrade, but unsure about how much RAM to buy? Here's how I make that decision in the current climate.