Quick update: I just did a bit of research myself and found out that the RAM in those NASes are not replacible and are soldered onto the motherboard. And for sure i might no longer consider buying one.
I like the Synology DSM's UI, I know Xpenology exists, but i'd rather not pay for a NAS that will most likely become ewaste in a few years.
I mentioned my mouse's name in the post, but incase you didnt notice it, my mouse is a lenovo legion m300s