You can play PrivateServ.NET by adding the server in the Minecraft launcher.
On Minecraft Bedrock Edition, open the Minecraft launcher or Minecraft app. Go to the “Servers” tab and press “Add Server.” Enter the PrivateServ.NET IP Address mc.privateserv.netin the “Server Address” and the PrivateServ.NET port 19132 in the “Port.” Then press “Save” and start playing.