Disk utilization is only one metric. The trade-off for Yarn PNP is that it incurs runtime startup cost. For us (~1000+ package monorepo), that can be a few seco

Disk utilization is only one metric. The trade-off for Yarn PNP is that it incurs runtime startup cost. For us (~1000+ package monorepo), that can be a few seconds, which can be a problem if you're doing things like CLI tools. Also, realistically, with a large enough repo, you will need to unplug things that mess w/ file watching or node-gyp/c++ packages, so there is some amount of duplication and fiddling required.