MYFUNC = LAMBDA(
    mytext,
    vector_pattern,
    vector_replaced,
    LET(
        combined, HSTACK(
            vector_pattern,
            vector_replaced
        ),
        dataseq, SEQUENCE(ROWS(combined)),
        REDUCE(
            mytext,
            dataseq,
            LAMBDA(acc, curr,
                LET(
                    curr_pattern, INDEX(
                        vector_pattern,
                        curr
                    ),
                    curr_replaced, INDEX(
                        vector_replaced,
                        curr
                    ),
                    REGEXREPLACE(
                        acc,
                        curr_pattern,
                        curr_replaced,
                        1
                    )
                )
            )
        )
    )
);