I only care about managing my memory because the consequences of running out of free memory are severe. Linux as shipped by mainstream distros is quite happy to start filling swap (with attendant kswapd CPU usage) when there's multiple gigabytes of pointless inode/dentry cache to evict.
Both of these are problems that simply don't exist on Windows and MacOS. Windows because it doesn't pretend half of my system RAM is useful cache, MacOS because it does compression out of the box and doesn't appear to be so aggressive.