There are two standards when looking at SAR value.
Europe: W/KG @ 10g of body tissue
US/India: W/KG @ 1g of body tissue
The ZenFone 6 (6z) head SAR it's 1.57 W/Kg @ 10g and 0.98 W/Kg @ 10g for the body
For India where we look at W/Kg @ 1g of tissue the SAR values are 1.13 W/Kg @ 1g for the head and 0.91 W/Kg @ 1g for the body
All this info can be found in the manual on page 78 and 83
But here's a video that explains to you why you don't need to care about SAR. All you need to know is that all manufacturers are within the safe limits and that in the end, these values don't tell you anything. The SAR value is the maximum measured radiation at any point, no matter what scenario. It would be much more interesting if there was an average SAR value measured over a certain time span because that would tell you a whole different story. Anyways, have a look, it's just 4 min long
😉https://youtu.be/vZtqXK8k7T0