Hide Dynamic Attribute - still shows code in browser source code (how to totally hide code)

[Dave]

You can use a conditional region:

Is it possible to DMX - remove element from DOM

Yes that is what conditional region is for that generates a dmx-if tag And indeed removes its contents completely from the DOM and this delivers huge performance improvements as @nshkrsh experienced in his work

A quick search of the Community should lead you to some help as the subject has been covered quite a few times @cpuser

Conditional Regions Community search results