The RX 480/580 is still good. As you know I ordered the 1660 super. I previously had a Vega 56 that I'd sold to pay some bills. Was using a 580, but that was just a good step down from the Vega. Hence me getting the 1660 super. Plus my monitor is 144 hz. I guess I'm just spoiled to that. I will say once you go to 144hz and you get used to that performance level, it's hard to go back.
However, if I were someone coming from a 1050ti for example or lower, the 480/580 would seem like beast cards.