Anno 1800 will be on Epic and Uplay stores only.

Unreal engine cut and gears of war sales are not enough to make a company keep throwing money like they're doing now.

Plus epic store is not making nearly enough money as you think.
They didn't mention any sales numbers for their exclusive deals with games like ashen, hades and more.
Their "hit" (metro exodus) made x2.5 compare to the original last light on lunch which is no way a fair comparison plus not mentioning the redux ones which out sales the originals by miles. But that's a topic for another discussion.

So IMO Fortnight and Tencent are there the main sources of money.

in business you have to eventually make money,, right now they can stand the losses because Fortnight is making them loads of cash, but eventually that'll run out, the main question remains, can they make their store profitable prior to their fortnight money running out? If they can then they'll stick around.. If Fortnight starts to slide which it will when the next big thing comes out, what's to keep Tencent hanging around.. eventually they'll pull the plug, it's costly to buy up exclusive rights to a game.. The biggest draw is their cut, but that cut isn't going to make a developer/publisher forgot steam sales,, that money will.. They have a very interesting business strategy right now, as much as I can't stand Epicgamestore atm, it'll be interesting to see how things pan out in 2 or 3 years..

...epic crap launcher will start making space rockets, launch it's missions on Mars and Venus and later rule the Earth!
I don't believe it myself though, but it sounds great

Yes, that why I believe they got a shot at this. The way consumers in this generation work + They got big investors and "Fortnite Money" to keep them rolling for a while. Amazon didn't make a profit after six years; we will see how long the epic store will last.

I'm not assuming all Ubisoft games will be Epic Store exclusives.

Why it should be fixed? It's Ubisoft's goal.
I wouldn't be surprised if in few months Ubisoft will say "due to critique of Epic Store, we will no longer sell our games there" and they will become Uplay Exclusives.

Tbh, it'll probably drop to 50% off in 3 months - look at Far Cry New Dawn, also Odyssey Ultimate is $50 on steam right now a much better deal? - but I'm a sucker for trade ship games and city building. This game really has no right being over $50, it's the same price as Sekiro and Bloodlines 2!

I know it's only cosmetic but that Imperial train and ship looks real nice, the only reason I'm contemplating my first and likely last pre-order.