https://wccftech.com/intel-z690-chipset-motherboards-for-alder-lake-cpus-to-retain-24-pin-connectors/

Intel's Z690 motherboards for Alder Lake Desktop CPUs will retain the traditional 24-pin connector design, as reported by Yuuki_ans. The leaker states that most motherboard makers have chosen to drop Intel's ATX12VO strategy.

The ATX12VO power connectors were going to be a big deal on 600-series motherboards including the flagship Z690 chipset-based products. Intel was actively trying to standardize the new and more power-efficient power connector configuration on its motherboards starting next generation but it doesn't seem to be the case anymore.