This texture pack will allow you to write more text in anvil . This is only a texture pack and it will allow you to write over 10000 characters in an anvil. This pack is for Minecraft bedrock

https://sites.google.com/view/jumpeddevotee55swebsite/texture-packs-minecraft?authuser=1

Now you can have longer names on items. May be good for maps that need lots of words to read...

This pack may also be good if you have ever wanted to name an animal a name but it was loo long for normal Minecraft to have on a name tag.