Default USB-C current without USB power delivery negotiation

Hi,

We developed a Usb device, and we experience an issue when we tried to use it on a MacBook M1 (Apple Silicon).

It seems that the MacBook M1 (and probably other models) advertise a default USB Current mode of 7.5Watt (1.5A@5V).

When it also exists a 15 Watt mode (3A@5V).

Can someone confirm that we understood correctly ? and is there a way to change the default USB Current to 15 Watt without USB-PD negotiation (we don't have it on our device).

Thanks.