hide extension of files recursively in one rule

[nikivi]

I have this simple rule : https://i.imgur.com/igwoGGo.png

I am struggling to make this rule be applied to all of the folders recursively. Can I do it?

Thank you for any help.

[Mr_Noodle]

Read the sticky article on going into subfolders, paying special attention to the example of how not to do things.