Unfortunately I don't use a scanner to monitor what the temps actually are in the cold soaked pack during charging process, but I have to assume that at least 25% of the energy is initially going to the warming process, the balance is going to the battery pack.
Assuming your highest concern is to not 'force' a charge while the battery is below freezing, without putting miles on the truck & using a faux destination to a DCFC to trick the BMS to commence battery warming, stationary in the driveway process
You could also try the following
Edit the location based charging profile (in the truck) to 50% (assuming you're current SOC is above this value) that should inhibit charging for the next step, 50% is the minimum.
Define a departure time that commences around the time you intend to do some charging, that will execute 30-60 minutes prior to faux leave time, warming up the battery.
Once the departure time has lapsed, go out to the truck, edit the location based charging limit to whatever value you desire, let the charging proceed.
This sequence of events should get the pack temps up, and it'll warm further from the charging activity.
You could do all of this from the comfort of your easy chair IF you turn on connected options......
