DATAPACK VERSION AVAILABLE ON MODRINTH

Here's a similar mod which instead creates a new enchantment which, when put on your helmet, hides your player tag.

How to use

Simply upload the datapack and the tag of any player who is wearing a leather cap will disappear, taking it off would make your tag visible again.‎

see here for how to install datapacks.

Both a datapack and a mod, download Cloaker