Boards Manager Update takes considerable time for some boards.
At the end there is a popup dpinst for compiler install finalization.
This popup has a timeout. It forces me to sit in front of my notebook to not miss it.
As I don't know if it is important, I can't go away to have coffee in the meantime.
And these updates are quite frequent!
Could dpinst timeouts be disabled?
BTW: my wife tells me she would post in Installation & Troubleshooting if she had troubles with Arduino
It is the installation of the drivers that are bundled with the boards platform.
If the drivers are already installed (as would be the case if you installed the platform previously, installed another platform that uses the same drivers, or installed the drivers via some external mechanism e.g., Windows Device Manager), then it is OK if the dpinst operation gets skipped.
If you don't have the drivers and it gets skipped, it is still possible to manually install the drivers, but having to do so is a degradation of the user experience (especially for less experienced users).