I’m sat in front of my work computer(OSX) and may personal laptop(Linux).

Both are using well over 8GB just for the browsers.

On OSX vscode is using an additional 4GB and the windowserver east up 1GB too

On Linux/KDE my window manager is much lighter but for some reason my akonadi is using 2GB on my contacts resource

Sure you can technically run Linux on much less memory but a modern browser, hitting modern websites will use up 8GB pretty quickly.