This end portal location is from the last title update from 2018.
The other solutions are good as well but you dont have to go to the nether, just pick the 10 ingredients for the endereye from the alchemy area chest, die ingame, go back to the same place and there will be 10 new ingredients from the same chest then you got 20 of it, which you can make easily 12 ender eyes. After you defeated the Enderdragon and entered the „End City“, find those shulkers, place 50 to 100 blocks into the air, teleport yourself down with the enderpearl, get hit by the shulker and if you’re levitating, just throw some ender pearls into the air of 100 blocks and get the achievement.
If you have any suggestions to improve this solution let me know.