I am going in early November too! This is our first trip so I don't know much. I have found that there is an Universal FL App. It IS like Disney's app - with a map and wait times. I also read that you need the app for mobile food and drink ordering.
The app does have sign-ups for virtual queues - but I don't know anything about EP.
Hopefully more knowledgeable people answer so I can learn too!
To add to this - EP doesn't require the app. If you are staying at one of the 3 hotels that includes EP, your room key doubles as your EP credentials. You just show your key at the EP entrance to the ride and they scan it. Then there is usually a second scanner part way through that line. This is where lanyards are particularly helpful - makes it easy to show your EP without having to pull it out of your pocket over and over.We have been to Uni several other times, but not during this mess called Covid, lol. EP (Express Pass) came with our hotel stay, since we are at Hard Rock. If you are asking about EP itself, you can get it for free when you stay at Hard Rock, Portifino (closed at this time) or Royal Pacific. Otherwise, you can purchase the pass seperately at the park.
Just to give you an idea about EP--we have hit BOTH parks in a single day by utilizing EP. Typically, we start our vacation at Uni, then head to Disney for the rest. We have hit literally every ride we have wanted in 1-day (of course that is moving pretty good) by using EP. I wish Disney had something similar, because this is where Uni is far superior.