Windows 10 Feature Update 2004 taking too long to install

Today I was notified by Windows Update that the 2004 update is finally ready to be downloaded and installed on my laptop. I pressed download and install and left the laptop plugged in idle as I did not have any laptop work to do at that time. Now it's been 4 hours since I left it on, and the Windows Update screen (in the Settings > Updates & Security) is still at 94% installing, which is the exact number I saw more than an hour ago. Is it stuck? Why is it taking so long to install? My internet is fast enough, I don't have many programs installed apart from a few essentials such as Office and Inkscape along with other credible software. I am afraid that if I close it and reset the Windows Update, it'll take 4+ hours again (not to mention the additional lengthy rebooting and installing the update again in the blue background screen which happens with every single update), plus it's already night here so I cannot leave it turned on while I go to sleep.