Among long-standing computer users, the Windows copy dialog joke is well known. The Windows 10 Update dialog can join the joke.
I run Windows 10 in a virtual machine (VM) using raw disk access. I monitor the network transfers from within Windows 10 and in the Ubuntu host. Often there is no change in packets yet the Windows 10 dialog will show percentage changes. Conversely, the dialog will show no percentage change while packet exchanges are whipping by.