When you do the command "/give <player name> minecraft:tipped_arrow" it gives you an arrow that is called "Arrow of Splashing" and this is not in the creative inventory.
When you do the command "/give <player name> minecraft:tipped_arrow" it gives you an arrow that is called "Arrow of Splashing" and this is not in the creative inventory.
You need data tags that determine the type of potion effect, this is the behaviour mojang gave it