So Epic is bad everyone knows it
They promised a bunch of features like preloading and cloud saves basic stuff all modern game stores support. If you look at their roadmap these are marked as implemented but it came out recently that the upcoming borderlands 3 supports neither preload or cloud saves. They've also pushed back a bunch of features to later this year that were promised in the first 6 months.
Now epic are using the "But steam has had 15 years to get this right!" which is a complete bullshit excuse if you are launching a store in 2019 you need preload you need cloud saves you need user reviews and a bare minimum a bloody shopping cart!
Oh and even if you use that excuse you could preload halflife 2 on steam when it launched so it's not even as good as a 15 year old version of steam.
Epic seem content to just throw their bags of fortnite cash about buying up exclusives while jabbering about how noble and great they are for saving the poor indie devs that steam hates and tortures when no one is looking. They have no intention of fixing the cobbled together mess of a launcher they claim is a real competitor to steam.
It's not helped by Tim Sweeny being a smug arsehole on twitter
It's a continual trainwreak of a thing that shows no sign of getting better just continual fuckups and bad PR