Burnt out, tired, bored, etc of any and all open world games. It's just annoying at this point..not everygame needs a map...not every game needs to show damage points when u hurt an enemy. Back in the day, that would classify as an RPG. Now, everything a rpg lol. FoH. Give me that 5 hour Gears of Fucking War 1 campaign anyday, I'm happy.
Also, going back to what the OP saying with AC Odyssey I personally think RPG elements/terrible story is what killed off the AC franchise for me. The last simple AC was syndicate, after that they went full RPG. So I think we are on the same page.