Any such franchise granted under previously existing law shall not be abrogated by the provisions of this chapter , but all such franchises and all franchises granted under the provisions of this chapter shall be subject to further legislative control. [C24, 27, 31, 35, 39, § 8331; C46, 50, 54, 58, 62, §489.22; C66, 71, 73, 75, §489.23; C77, 79, 81, §478.23 ] 2022 Acts, ch 1032, §75