The law doesn't technically prohibit this, but the President has to sign off before the app becomes un-banned, and the law does specifically call out "any coope

The law doesn't technically prohibit this, but the President has to sign off before the app becomes un-banned, and the law does specifically call out "any cooperation with respect to the operation of a content recommendation algorithm" as the type of thing that the executive might take into account. So just renting a black-box recommender from ByteDance would likely be a no go.