https://www.pcgamer.com/cowboy-mmo-wild-west-online-has-left-early-access-technically/

Wild West Online, which you might remember from the leaked images that got everyone wondering if it was Red Dead Redemption 2, has left early access. Unfortunately, it seems to have left early access only in name, frustrating the nascent playerbase who have been voicing their complaints on Steam. 

The lack of PvE seems to be the main problem. It was advertised (and still is) as being both a PvE and PvP MMO, but at launch the PvE side appears to be barely present at all.