That I don't know. Is there some reason you're still leery of installing the update?
I think anyone should be leery of this type of updating. I'm personally going to cancel the popups each time and not install. I assume MSoft will eventually add it to an upcoming scheduled Windows update if its official. I recommend for anyone that has
a bad feeling about popup exe files or insta-click installs to simply trust your gut. Even though I have Office Starter, I use free open source office anyway so why would I take the risk? I run Malwarebytes, Windows Defender, and an IP blocker live monitoring
intrusions but so far this update hasn't been flagged as a threat from any of them. Normally that would make me feel comfortable but in this situation it makes me worried about its potency if proven to be a threat. Those that have installed already I hope
no harm comes to your system data. For those getting ready to install it I recommend backing up your files safely first.