Ethernet streaming

Many high end dac’s now have built in streaming capability via Ethernet. Is this a better way to go than adding a separate streamer to feed the dac?  In my case, streaming Qobuz and using roon. Also have an Aurender dac/pre that wouldn’t be needed if dac only streaming was used. Wondering about the advantages and disadvantages of these two approaches. I’m sure this has been discussed before, but I can’t find it.