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"Every normal USB-C cable must support at least 3 amps of current and up to 20 volts for up to 60 watts of power according to the USB PD specification.
Cables are also allowed to support up to 5 A (with 20 V limit up to 100 W of power).
However, the 20 V limit for 5 A cables has been deprecated in favor of 50 V.
The combination of higher voltage support and 5 A current support is called EPR and allows for up to 240 W (48 V, 5 A) of power according to the USB PD specification."

For my CPAP, I extract 20V up to 5A from my powerbank through a USB-C power delivery trigger cable.