How does split fast chargers work?

The Bilkraft (BKK) split chargers have intrigued me, they support 150 kW for one car or 2x75 kW for two cars. I investigate how this actually works, is it like the Tesla V2 super chargers or is it 75 kW no matter how much the other car draws?
In this video I am using the following apps.Tesla, scanmytesla: play.google.co...
Ioniq, EVNotify: play.google.co...
Please consider using my referral link if you buy a Tesla: ts.la/yvind82417