Most top models have a powerful enough processor to keep up PPoE on Gigabit. The only question is the number of packets. For home network no claim will pull any of the top zixel, asus. tp-link.
Yes, and with a Gigabit channel is naive to think that everything will swing on the Gigabit. Usually the speed will be up to a hundred megabits to the Internet, only in rare cases more.
and also on wi-fi 2.4 and 5 Mbit 100. But the presence of AC is not very critical
Well, without ac 100мегабит not real, and it is not a fact.