See... no need to "save RAM". Web browsing, text communication and office work isn't resource intensive. You could easily do that with 4 GB RAM without any issues. Unless you start using more RAM, you pretty much wasted money on these 8 GB as you aren't using the memory to its full potential.
RAM is volatile memory. That means it only holds data temporary, when there's power. The moment power is lost, all the data that was loaded into RAM is lost without ability to recover. It's specifically made for this purpose; for data that you absolutely need in the moment. Unlike SSDs, RAM doesn't have limited number of writings before it goes bad and you can "write" data unlimited times on it.
This is exactly the reason why you shouldn't worry about RAM being used. The more RAM is used by apps, the faster everything will be because there isn't a need to constantly pull the data from drive. The more RAM you have, the more apps you'll be able to have opened simultaneously, browser tabs open and extensions running in the browser.
Ever wondered why your PC starts immediately when waking up from sleep? Because everything is loaded in the RAM and Windows doesn't have to pull data from drive again. Sleep mode essentially means all the components are turned off except RAM which keeps the state your PC was before going to sleep.
Right
@Bot?