Here it is
1.= Settings
2,=system
3.=Updates (…updates for ha, addons…)
4.= "no updates available
and no blue button in the right corner…
No matter what… all help you can find on the net start with: click on supervisor in the left panel… but… there is no such thing, its fake, it’s not there, it’s something in peoples imagination, the earth is also flat, and Australia doesn’t exist… 
12 hour on a Sunday looking for something that doesn’t exist… gotta go now… byeee 