Only for those users who do not have proof of work capability, they get put at the back of the line, but anybody with proof of work capability, which was released last August, will do the work and be put higher priority. I know some people who run seed nodes for Haveno-reto and they had major DDOS issues until they got PoW enabled. It was taking like 5 or 10 minutes to get connected to the network. And now it takes about 30 seconds.
Having the proof of work defense has been a game changer for the network. I’ve noticed a hell of a lot less unresponsive onion services. However, this is old news as it was released last August. Most everybody should have a version capable of doing the proof of work by now.