If it did that, that would be great, but it has a long ass way to go to even get close to being as good as Steam.
I really don't want 20 different game launchers sitting down running in my system tray constantly. And you can say, well then just close them, but then when I actually go to play a game, chances are I have to update that game because the launcher wasn't open for a few days. And then you have stupid devs that make multi-GB updates that I have to sit and wait for.
I'm all for competing games launchers, don't be me wrong. However, I'm very much against games having any type of exclusivity. Put the game out on every platform, let the consumer decide which platform they want to buy it on. And if, for example, Epic gives the developers/publishers a better deal and they want that to be their primary launcher, price the game accordingly on that platform. Make the game 10% cheaper on Epic. The lower price might entice more people to use it, and also make up for the lacking features of that platform.