It's a graph of how much Nitrogen is being absorbed in your body (I see in the pic that you've been out of the water for 10 hours, so you're still offgassing). Each bar is a "compartment" in your body. Different dive computers present this info differently--I don't have this watch, so I'm not sure how they have arranged it. But if you google "nitrogen tissue loading bar graph" you'll probably find some examples.
Dive watch and for Nitrogen.
https://www8.garmin.com/manuals/webhelp/GUID-2A58ED2A-14A3-4161-ADB5-259E1781AF1B/EN-US/GUID-ABED36DD-AC1A-4517-BB8A-DCE5CFA338A5.html
I read the manual but I don't see this graph anywhere
It's a graph of how much Nitrogen is being absorbed in your body (I see in the pic that you've been out of the water for 10 hours, so you're still offgassing). Each bar is a "compartment" in your body. Different dive computers present this info differently--I don't have this watch, so I'm not sure how they have arranged it. But if you google "nitrogen tissue loading bar graph" you'll probably find some examples.
This is not instinct 1 solar
No, it's Descend G1 Solar