No sorry the real answer is that Windows '95 conditioned us to accept terrible progress bars.<br>It is not true that people are fine with janky progress bars, because otherwise you would not make a video about it, you make a video about it because you know people (rightly) complain about it.<br>And yes multitasking or fluxuating Internet connections can affect the progress bars in unexpected ways, but even if tasks are being completed in a regular way Windows is not able to give proper progress bar, and programmers are lazy about because we have been conditioned us to accept crappy software.