I bought a Lenovo laptop charger with USB-C connector. There was no mention of USB PD but the label listed voltages (5v, 9v, 12v, 15v, 20v), which encourages us to guess that it may possibly be USB-PD (what else?). But since there is no incentive for Lenovo to disclose whether it’s USB-PD compliant, it chooses to minimise its legal liability and write nothing about USB-PD (as most PSUs do, even aftermarket ones).