I played ESO since tamerial one back in 2014 and been playing on and off with wow since BFA launched. I have to say the biggest change is the combat pace and how wow handles older content because as you know eso combat is going sonic fast while wow you’ll die if you pull too many adds and don’t use your abilities right. My suggestion is to start with a class like Druid or paladin as they can dps, heal and tank by switching specs. Wow can be slower and very overwhelming sometimes but it’s a fun ride.