Anker is good. The limit for USB-C cables is normal ones go to 60W, marked ones go to 100W. The cables are passive except for the marker chip. It is the charger

Anker is good. The limit for USB-C cables is normal ones go to 60W, marked ones go to 100W. The cables are passive except for the marker chip. It is the charger that does USB-PD. Do you have it plugged into regular charger that does 15W, or USB-PD charger that does more? I guess you could have a bad cable where the CC wire has broken and can't do USB-PD.