The video you linked appears to be incorrect, and not posted by the manufacturer\declined to use the video so this video is fiction for whatever reason they did not want to use it.
View attachment 142088
Here is a video from the same place but it appears the manufacture ended up using it.
Note this has an actual Ram in it and not a generic placeholder.
It's showing an 20/80 split between the front and rear.
Here is a press release from Borg Warner for the transfer case, it doesn't get very detailed in operation though but does state "The heart of BorgWarner’s new EMOD transfer case is a motor-driven rotational cam mechanism which provides both robust clutch control and range shift function. The active clutch actuation technology delivers higher torque output, linear clutch response and preemptive clutch locking torque with zero rear wheel spin."
I also see more articles that state this
"Transfer cases get upgrades Buyers who equip their 2019 Ram 1500 with a four-wheel drive drivetrain can choose between two electronically controlled transfer cases: the Borg Warner 48-12 for part-time 4WD operation with Hi and Low ranges; and the BorgWarner 48-11 for on-demand 4WD. Both transfer cases engage via a push-button control mounted underneath the rotary gear selector on the instrument panel.
...The on-demand transfer case has 4Auto, 2Hi, 4Hi and 4Lo selections.
4Auto provides full-time 4WD, responding automatically to provide maximum traction in all road conditions. 2Hi, 4Hi and 4Lo function equally to the part-time transfer case.""