I rarely get upset at computers these days, but this is one of the things that easily boils my blood. It happens with Windows and macOS machines at the most inopportune times. I'll be typing and hit enter, seeing a mysterious dialog appear and vanish in a flash as it stealthily hijacked my "Enter" stroke. "Great, who knows what I just accepted or declined."
It seems like a very basic UI consideration to discard any keystroke if the dialog spawned less than 1 to 3 seconds ago. Make it a global rule (Or better yet, a user setting) for all UI dialogs in the OS that is impossible for developers to override.
Linux is not a window manager.
I just don’t understand; I cannot fathom what implementation could be so complex that they can’t achieve full test coverage on something like whether or not a damned window appears when required.
It does seem that complicated from my observations. Notice that it's not a regular window, but part of the overriding/overlayed renderer (DWM? something else?) that draws stuff on top with grayscale smoothing (Direct2D? DirectWrite? something else?)... which probably involves lots of communication between several processes. It feels like an incredibly heavyweight UI component, just judging from the lag between when the icon is clicked and when the list of networks pops up.
Disk IO is a huge bottleneck in the setup process.
Disabling cortana, xbox, candy whatever, news, telemetry, etc., setting windows not to maximize when dragged... is no fun