How to replace a certain string in the product.twig with the strg_replace function

Hej folks,

I am new in programming extension in OC and it was easy to change a simple string as long it was a normal one with the „after“ handler.

But when it comes to change a string like:
I am lost
It is clear to me, that the „after“ handler does not make sense here, but I couldn‘t find a way to handle such cases.

Is there a good example of how to do this?

Best,
Jack

See this post.

THNX