I think I should try and call attention to the Unity devs for this. 1 GB is just too much, especially if they wanna make URP the new standard. On 2018 (non-URP) versions the Library folder would take up about 30 megabytes on a clean project. On 2021.3.0f1 (non-URP) the Library folder takes up about 300 megabytes on a clean project. On 2021.3.0f1 (URP) the Library folder takes up 1.2 gigabytes on a clean project. How did that happen? Why? I think that they should try to reduce the size a little, because this means that if someone has 10 Unity projects (say some small jam games) that's 12 GBs kicked out of that person's hard drive, and as more projects are created that computer's performace will be degraded (because in my experience even a few GB on or off make a big difference, EVEN on a 1-terabyte HDD) "Delete the Library folder from old projects"? "Get an SSD"? Well, those might actually be good ideas. But aren't there ways for the Unity devs to reduce that folder's size? I mean, just HOW did it become that large and why is it necessary for it to be that large? Can someone at least explain that to me?