This is resource reservation, it happens at an OS level. If chrome is using what appears to be alot of ram, it will be freed up once either the OS or another application requires it.
It just exists so that an application knows that if it needs that resource it can use X amount for now.
derpgon@programming.dev 4 months ago
Same here. When idle, the apps basically consume nothing. If they are just a webserver that calls to some PHP script, it basically takes no RAM at all when idle, and some RAM when actually used.
Websites and phone apps are such an unoptimized pieces if garbage that they are the sole reason for high RAM requirements. Also lots of background bloatware.