Brand new, out of the box. It's been sitting here at 100% for 5 minutes.
Arch: 30sec for update, 2min for full system upgrade
Kubuntu: 2min for update, 10min for full system upgrade
Windows: 5min for update, 30min for full system upgrade
Ubuntu: Please close firefox so i can install update. You closed it? Well... the update can wait.
Gentoo: 💀