Words have actual meanings. "Leverage" is not a fancy synonym for "use".

Leverage means force multiplication, both in actual levers and in financial instruments. If there is no force multiplicate, there is no leverage.

You aren't "leveraging" forEach, because there is no leverage here. You are simply using it.

(And no, it is not correct to say, "This tool makes things easier so 'leverage' is correct." You don't "leverage" a can opener, even though opening a can would be much harder without it.)

There are a dozen verbs meaning "use". But there is no synonym for "leverage". Please, let's keep using it for its actual meaning.