I think you're being kind of negative here... I guess if you don't even want to TRY to do any instances or NMs, it's your choice. But for now, this is pretty much the most viable thing you can do as a melee class. The other option is to try to time it so you run out of the AoE and run back in. I don't think archers need to be the kings of damage anyways, necessarily. Because I'm not higher ranked, and haven't played 1.18 enough to get a good feel for the changes, this is my best advice.
So adapt, switch classes, or wait for 1.19 to play again.
